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10 Side Effects of Rapid Weight Loss

Losing weight fast may seem ideal, but there are a few side effect to look out for.

FACT CHECKED BY Christopher Roback
Fact-Checked

Our content is fact checked by our senior editorial staff to reflect accuracy and ensure our readers get sound information and advice to make the smartest, healthiest choices.

We adhere to structured guidelines for sourcing information and linking to other resources, including scientific studies and medical journals.

If you have any concerns about the accuracy of our content, please reach out to our editors by e-mailing editors@bodynetwork.com.

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FACT CHECKED BY Christopher Roback
Fact-Checked

Our content is fact checked by our senior editorial staff to reflect accuracy and ensure our readers get sound information and advice to make the smartest, healthiest choices.

We adhere to structured guidelines for sourcing information and linking to other resources, including scientific studies and medical journals.

If you have any concerns about the accuracy of our content, please reach out to our editors by e-mailing editors@bodynetwork.com.

Losing weight fast can seem like a dream come true. However, there are some negatives that come along with rapid weight loss you should consider before taking a GLP-1 drug like Ozempic or going on a drastic diet. We asked some of the top doctors, plastic surgeons, and weight loss experts to reveal major side effects of rapid weight loss – via either the natural way or using weight loss drugs – to look out for.


Fat Deposits

Pen,Injection,Semaglutide,Ozempic, diabetes, medicine, medication, diet, weight, lossShutterstock

While losing weight reduces overall body fat, deposits still exist. “Treatments like Ozempic help with rapid weight loss, but fat still exists in a reduced size,” Vishal Verma, MD, Founder of Revive Med Spa, says, recommending treatments like CoolSculpting to help “eliminate the fat cells, furthering the long-term results.”

RELATED:20 Possible Ozempic Side Effects

Uneven Skin Tone or Texture

Portrait of a man worried about hair lossShutterstock

There is also the appearance of uneven skin tone/texture with weight loss. “Stretch marks may become more apparent with weight loss, so resurfacing treatments can help even tone and texture for a more youthful, radiant glow,” says Dr. Verma. “

Hair Loss

Woman's hand holding hair strands fallen on a comb in close-upShutterstock

Hair loss can be a potential side effect of rapid weight loss. This is often due to nutrient deficiencies, stress, and hormonal changes that occur when the body loses weight quickly.

RELATED: 20 Incredible Ozempic Success Stories of All Time

Unplanned Pregnancies are Being Examined

Flat,Belly,Expecting,Baby,pregnant,diet,healthShutterstock

Losing weight can impact fertility. "Weight loss can generally be associated with increased fertility by restoring normal ovulation in people who have PCOS or other causes of abnormal cycles," said Dr. Daniel Drucker, a professor and researcher at the University of Toronto's Mount Sinai Hospital and a pioneer of research into GLP-1 in an interview with CNN.

Ileus

woman clutching her stomach with her hands in discomfortShutterstock

Ileus, “which is a temporary condition where your intestine can't push food and waste out of your body, is an unofficial side effect due to the effects of slowing down the gut movement,” says Kylie Bensley, MS, RD and founder of Sulinu Nutrition. If you think you have this, she recommends seeking medical advice.

Muscle Loss

Bearded thin man measuring biceps, muscles of his left arm with a yellow tape measure. He's calm, serious, quiet. Wearing blue t-shirt. White background.Shutterstock

Sue Decotiis, MD, NYC weight-loss doctor, notes that there are a few reasons why rapidly losing weight leads to muscle loss. “There are many people who lose muscle because they aren’t drinking enough water. Water intake is imperative. You really need to drink a lot of water when you’re burning that much fat. If you are not drinking enough water, your body won’t burn fat, and you’ll lose muscle,” she says. The other reason is losing weight rapidly, which often leads to losing muscle. To mitigate this, make sure to lift weights or do another form of muscle-strengthening exercise.

RELATED:What Happens to Your Body When You Stop Taking Ozempic

More Self-Esteem

Happy couple enjoy outdoor leisure activity together carrying and using a bike and laughing a lot. Love and friendship with mature man and woman in youthful lifestyle. Concept of joyful and excitementShutterstock

A positive side effect? “I’ve seen a lot of positive effects on personality in my practice. When people lose weight, they have better self-esteem, and they feel more confident in their own skin,” says Dr. Decotiis. “I have people who were using sedatives for anxiety or depression, and then when they lost weight, they felt better and didn’t need them as much. My patient who has ADHD felt they had better focus and concentration.”

Eating Disorder Triggering

,Woman,,Guilty,Eating,Cake,Cheating,Diet,eating, disorderShutterstock

If you have eating disorders in your history, rapidly losing weight can be triggering. “If there’s a history of an eating disorder, that’s when people can run into some problems. People who used food as a crutch and would go to food for comfort may miss food a lot because they used to get that dopamine hit from using food to make them feel better,” explains Dr. Decotiis. She recommends anyone who has struggled with these sorts of issues to work with a therapist while losing weight.

Decreased Libido

Beautiful young couple in bedroom. Close up of male and female feet under the blanket looking away from each other.Shutterstock

Losing weight might impact your sex drive. “In the beginning, realize there’s a tremendous metabolic change going on in the body that can cause fatigue, and when someone is tired, their libido goes down. As time goes on and you lose more weight and feel better, libido will go back to normal because you’ll feel more confident and better without clothes on,” says Dr. Decotiis.

RELATED: 20 Things You Need to Know About Ozempic and Weight Loss

Saggy Skin

Close-up Of A Woman Holding Arm With Excess Fat On Grey BackgroundShutterstock

According to Dr. Decotiis, some people are complaining about having a saggy butt, face, or loose skin after rapidly losing weight, which has to do with fat loss. “Your skin stretches when you gain weight, so when you lose a lot of weight, sometimes your skin doesn’t fully go back to normal,” she says. “Think of a woman who’s pregnant. When she has a baby, sometimes her stomach takes time to go back to how it was before.” One way to mitigate this effect is by weight training during the weight loss process. “Additionally, as you age, you have less elasticity in your skin, and you cannot produce as much collagen. Your skin bounces back better when you’re younger,” she says.

💪🔥Body Booster: After losing weight fast, make sure to lift weights or do another form of muscle-strengthening exercise to avoid losing muscle.

More For You

Woman looking in the mirror and checking her hair.
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FACT CHECKED BY Christopher Roback
Fact-Checked

Our content is fact checked by our senior editorial staff to reflect accuracy and ensure our readers get sound information and advice to make the smartest, healthiest choices.

We adhere to structured guidelines for sourcing information and linking to other resources, including scientific studies and medical journals.

If you have any concerns about the accuracy of our content, please reach out to our editors by e-mailing editors@bodynetwork.com.

Losing weight fast can seem like a dream come true. However, there are some negatives that come along with rapid weight loss you should consider before taking a GLP-1 drug like Ozempic or going on a drastic diet. We asked some of the top doctors, plastic surgeons, and weight loss experts to reveal major side effects of rapid weight loss – via either the natural way or using weight loss drugs – to look out for.


Fat Deposits

Pen,Injection,Semaglutide,Ozempic, diabetes, medicine, medication, diet, weight, lossShutterstock

While losing weight reduces overall body fat, deposits still exist. “Treatments like Ozempic help with rapid weight loss, but fat still exists in a reduced size,” Vishal Verma, MD, Founder of Revive Med Spa, says, recommending treatments like CoolSculpting to help “eliminate the fat cells, furthering the long-term results.”

RELATED:20 Possible Ozempic Side Effects

Uneven Skin Tone or Texture

Portrait of a man worried about hair lossShutterstock

There is also the appearance of uneven skin tone/texture with weight loss. “Stretch marks may become more apparent with weight loss, so resurfacing treatments can help even tone and texture for a more youthful, radiant glow,” says Dr. Verma. “

Hair Loss

Woman's hand holding hair strands fallen on a comb in close-upShutterstock

Hair loss can be a potential side effect of rapid weight loss. This is often due to nutrient deficiencies, stress, and hormonal changes that occur when the body loses weight quickly.

RELATED: 20 Incredible Ozempic Success Stories of All Time

Unplanned Pregnancies are Being Examined

Flat,Belly,Expecting,Baby,pregnant,diet,healthShutterstock

Losing weight can impact fertility. "Weight loss can generally be associated with increased fertility by restoring normal ovulation in people who have PCOS or other causes of abnormal cycles," said Dr. Daniel Drucker, a professor and researcher at the University of Toronto's Mount Sinai Hospital and a pioneer of research into GLP-1 in an interview with CNN.

Ileus

woman clutching her stomach with her hands in discomfortShutterstock

Ileus, “which is a temporary condition where your intestine can't push food and waste out of your body, is an unofficial side effect due to the effects of slowing down the gut movement,” says Kylie Bensley, MS, RD and founder of Sulinu Nutrition. If you think you have this, she recommends seeking medical advice.

Muscle Loss

Bearded thin man measuring biceps, muscles of his left arm with a yellow tape measure. He's calm, serious, quiet. Wearing blue t-shirt. White background.Shutterstock

Sue Decotiis, MD, NYC weight-loss doctor, notes that there are a few reasons why rapidly losing weight leads to muscle loss. “There are many people who lose muscle because they aren’t drinking enough water. Water intake is imperative. You really need to drink a lot of water when you’re burning that much fat. If you are not drinking enough water, your body won’t burn fat, and you’ll lose muscle,” she says. The other reason is losing weight rapidly, which often leads to losing muscle. To mitigate this, make sure to lift weights or do another form of muscle-strengthening exercise.

RELATED:What Happens to Your Body When You Stop Taking Ozempic

More Self-Esteem

Happy couple enjoy outdoor leisure activity together carrying and using a bike and laughing a lot. Love and friendship with mature man and woman in youthful lifestyle. Concept of joyful and excitementShutterstock

A positive side effect? “I’ve seen a lot of positive effects on personality in my practice. When people lose weight, they have better self-esteem, and they feel more confident in their own skin,” says Dr. Decotiis. “I have people who were using sedatives for anxiety or depression, and then when they lost weight, they felt better and didn’t need them as much. My patient who has ADHD felt they had better focus and concentration.”

Eating Disorder Triggering

,Woman,,Guilty,Eating,Cake,Cheating,Diet,eating, disorderShutterstock

If you have eating disorders in your history, rapidly losing weight can be triggering. “If there’s a history of an eating disorder, that’s when people can run into some problems. People who used food as a crutch and would go to food for comfort may miss food a lot because they used to get that dopamine hit from using food to make them feel better,” explains Dr. Decotiis. She recommends anyone who has struggled with these sorts of issues to work with a therapist while losing weight.

Decreased Libido

Beautiful young couple in bedroom. Close up of male and female feet under the blanket looking away from each other.Shutterstock

Losing weight might impact your sex drive. “In the beginning, realize there’s a tremendous metabolic change going on in the body that can cause fatigue, and when someone is tired, their libido goes down. As time goes on and you lose more weight and feel better, libido will go back to normal because you’ll feel more confident and better without clothes on,” says Dr. Decotiis.

RELATED: 20 Things You Need to Know About Ozempic and Weight Loss

Saggy Skin

Close-up Of A Woman Holding Arm With Excess Fat On Grey BackgroundShutterstock

According to Dr. Decotiis, some people are complaining about having a saggy butt, face, or loose skin after rapidly losing weight, which has to do with fat loss. “Your skin stretches when you gain weight, so when you lose a lot of weight, sometimes your skin doesn’t fully go back to normal,” she says. “Think of a woman who’s pregnant. When she has a baby, sometimes her stomach takes time to go back to how it was before.” One way to mitigate this effect is by weight training during the weight loss process. “Additionally, as you age, you have less elasticity in your skin, and you cannot produce as much collagen. Your skin bounces back better when you’re younger,” she says.

💪🔥Body Booster: After losing weight fast, make sure to lift weights or do another form of muscle-strengthening exercise to avoid losing muscle.

Fact-Checked

Our content is fact checked by our senior editorial staff to reflect accuracy and ensure our readers get sound information and advice to make the smartest, healthiest choices.

We adhere to structured guidelines for sourcing information and linking to other resources, including scientific studies and medical journals.

If you have any concerns about the accuracy of our content, please reach out to our editors by e-mailing editors@bodynetwork.com.

If you feel like your metabolism isn’t working efficiently, you aren’t alone. Kelsey Kunik, RD, is a nutritionist who tries to help people “overcome overeating without dieting.” In a recent Instagram video, she discusses metabolism and how yours could be damaged because of dieting. “Do you ever feel like other people are ‘blessed’ and you’re ‘cursed’ when it comes to your metabolism??” she writes in the beginning of the post, going on to explain why and what you can do about it. Body Network also consulted with our Resident RDN, The Diet Diva, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian, co-author of the Flat Belly Cookbook for Dummies, to offer her input on the topic.


Some People Try Dieting to Speed Up Their Metabolism, But It Has the Opposite Effect

Kelsey_Kunik_graciouslynourished2graciouslynourished/Instagram

In the video, Kunik explains that oftentimes when someone believes their metabolism is damaged, they might go to the wrong extremes. “That might lead you to dieting to lose weight or speed things up, but the truth is that dieting, especially dieting on and off over several years, can have a massive impact on how efficiently you burn calories,” she says.

Here Are the Signs and Symptoms Yours Needs Help

Kelsey_Kunik_graciouslynourished1graciouslynourished/Instagram

“While this is NOT medical advice and it’s not the ONLY possible cause of these symptoms, your metabolism could use a little help if you experience any of these,” she says.

Holding Onto Extra Weight

Overweight unhappy asian woman extra heavy body cellulite sitting on bed at home. Upset oversized lady worry diet weight loss suffering from extra weight. Obesity unhealthily concept.Shutterstock

Are you feeling heavier than usual? The first sign is “holding on to extra weight,” says Kelsey.

Fatigue

Sleepy young woman drinking coffee, feeling tired, suffering from insomnia and sleeping disorder. Sad female sitting in modern kitchen interior, empty spaceShutterstock

The second sign your metabolism is damaged? “Feeling tired,” she says.

Constipation

Door handle open to toilet can see toiletShutterstock

Are you having trouble going to the bathroom? “Number three on the list is constipation,” she says.

Always Feeling Cold

Frozen. Sad latina female sit on couch at freezing cooled studio flat in warm cap and blanket shiver tremble with cold. Unhappy young lady spend time at home feel bad suffer of heating system problemsShutterstock

Are you getting the chills more than usual? The fourth sign your metabolism is damaged is that you are “always feeling cold.”

Hormone Imbalances

Depressed woman sitting alone on the bed with hands on head feel stress, sad and worried in the dark bedroom and low light environmentShutterstock

Are you feeling all over the place or unusually hormonal, even when it’s not that time of the month. Number five, “hormone imbalances,” she says.

The Answer: Feed Your Body with Nutrients

Girl holds a paper plate with healthy food sitting on the floor. Home delivery food. Healthy eating concept. When you stay at home.Shutterstock

What should you do about it? “And the answer to repairing your metabolism is NOT another diet,” she continues. “When your body is given nourishing food on a regular basis that’s balanced with high protein, fiber, quality carbohydrates, healthy fats, and plenty of fruits and veggies, it begins to trust that food is available and your metabolism can start to HEAL itself. Your metabolism will NOT improve when your body is in a constant flux of starvation and excess — as if you needed another reason to stop dieting!”

Related: This Is Exactly How to Lose Body Fat This Year

Why Your Metabolism Could Be “Tanking,” According to Collingwood

tara_collingwood6dietdivatara/Instagram

Collingwood agrees on all points. “All of these could be signs that your metabolism is tanking,” she says, offering reasons why it may be happening. “It could be from lack of physical activity, poor diet, eating too little, getting too little sleep, or a variety of other reasons,” she says. “When under stress, the body tries to hang on to what it has which means lowering metabolism to prevent weight loss and cause fatigue and other symptoms.”

💪🔥Body Booster: If you are struggling with your metabolism, resist dieting. Instead, try and take a more balanced approach to nutrition, allowing it to reset.

Female Customer Unhappy with the Dish Course in Restaurant. Depressed lonely woman suffering from appetite loss
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FACT CHECKED BY Christopher Roback
Evidence-Based

This content references scientific studies and academic research, and is fact-checked to ensure accuracy.

Our team of licensed nutritionists and dietitians strives to be objective, unbiased, and honest.

We are committed to bringing you researched, expert-driven content to help you make more informed decisions around food, health, and wellness. We know how important making choices about your overall health is, and we strive to provide you with the best information possible.

The most common sign you are consuming too many calories is that you are gaining weight. But did you know that your body might be sending you signs that you aren’t taking in enough? Lexi Wright is a metabolism, menopause, and fat loss coach whose main goal is helping “women 40+ reset their metabolism, lose weight, improve energy.” In a new post, she explains that not eating enough can have an impact on your health. “I see this with women in their 40s and 50s all the time. They are on the eat less workout plan for losing weight, and it's not working for them,” she writes. “Our bodies are smart, and we need a certain amount of calories for our actual normal body functions.” Here are key signs you aren’t consuming enough calories.


You Are Always Cold

Frozen. Sad latina female sit on couch at freezing cooled studio flat in warm cap and blanket shiver tremble with cold. Unhappy young lady spend time at home feel bad suffer of heating system problemsShutterstock

Are you often feeling cold? It may be because your caloric intake is too low. “Your body is smart and its common response to inadequate calories is to conserve energy to maintain your body core temperature,” she writes.

You Are Always Tired

Female office worker in glasses rubbing tired eyes, exhausted from overworking, sitting at workplace in office.Shutterstock/Prostock-studio

If “you lack energy and feel exhausted all day,” it could have to do with your food intake. “Too low of calories and your body will not have the energy to fuel itself for daily activities,” she writes.

RELATED: Here Is How to Lose 15 Pounds in 45 Days

You Are Stuck in a “Binge, Restrict” Cycle

,,Food,Fridge, refrigerator ,coldShutterstock

Another sign? “You are constantly in a binge restrict cycle because the calories are so low and you trigger feelings of deprivation which leads to cravings and binging,” says Lexi.

Hair Loss

Millennial girl with hair loss problem looking in mirror at homeShutterstock

Losing hair is another sign you aren’t consuming enough calories. “Low calories can deprive your body of the nutrients it needs for a lot of body functions including hair growth and maintenance,” says Lexi.

Constant Hunger

Woman,Feeling,Hungry,Looking,For,Something,To,Eat,In,AmusementShutterstock

“You are hungry all the DAMN time even though you are eating a good amount of protein and fibre to fill you up,” is the fifth sign you aren’t getting enough calories. “Your body is very smart and is telling you something!” she says.

You Lose Weight Fast

Full length of excited Indian woman sitting on scales at home, overjoyed with success of her slimming diet, side view. Emotional Asian lady achieving her weight loss goal, making YES gestureShutterstock

A more obvious sign? “You drop weight fast. More than 0.5% of your body weight every week,” she writes. “Rapid weight loss can indicate an excessively low calorie intake, which may compromise your overall health and metabolism.”

RELATED: 20 Proven Tips to Lose Weight with the 12-3-30 Walking Method

Irregular Periods

Young woman suffers, writhes in abdominal pain lying on couch in living room at home interior. Acute pain in bloating pms. Teenage girl with pain problems bowel diseaseShutterstock

If “your period goes bye bye or is irregular,” it may be a sign you aren’t eating enough. “When our bodies are under stress it’s defense mechanism is to shut down things that take a lot of energy and having a baby is one of those!” she writes.

Mood Swings

Dark-haired girl covers her face with handsShutterstock

If you are experiencing mood swings “and can’t get motivated,” you probably aren’t consuming enough calories. “Low calories can impact your mood and mental well-being, leading to irritability, mood swings, and overall motivation,” she writes.

You Can’t Build Muscle

A woman rubbing her upper arm at the fitness gymShutterstock

“You have been lifting weights and you are not getting any stronger,” is another clear sign. “Muscle is expensive calorie wise to keep and build. When we don’t have the calories to fuel workouts and muscle growth this is one of the first things that go,” she writes.

Constipation

Door handle open to toilet can see toiletShutterstock

The last sign you aren’t consuming enough calories? “You are constipated all the time,” she writes. “Lack of calories usually means lack of nutrients including fibre. Proper digestion is how we clear out all the ‘STUFF’ having a bowel movement at least once a day is essential to overall health,” she maintains.

💪🔥Body Booster: Just as eating too many calories per day can negatively impact your overall health, not eating enough can too. Try and hit your daily caloric intake goals to maximize health.

,Exhausted,Runner,Resting,After,Running,In,City, tired, hill
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FACT CHECKED BY Christopher Roback
Expert-Recommended

We've consulted with our team of licensed nutritionists and dietitians to bring you informed recommendations for food products, health aids and nutritional goods to safely and successfully guide you toward making better diet and nutrition choices. We strive to only recommend products that adhere to our philosophy of eating better while still enjoying what you eat.

Many of us have stood in front of the mirror, promising ourselves that this time, we'll finally shed those extra pounds - and fast. However, the desire for quick results often leads to mistakes that can be counterproductive or even harmful. Read on to learn common pitfalls to avoid when attempting rapid weight loss, with insights from fitness and nutrition experts.


Setting Unrealistic Goals

Hand with Pencil making goals list to lose weightShutterstock

One of the biggest mistakes is setting unrealistic goals, such as aiming to lose 5 percent body fat in just two weeks. Blanca Garcia, RDN, cautions, "A 5% body fat loss in two weeks is not a recommendation I would make. The healthier, more achievable goal is to make lifestyle changes that are small but doable."

Falling for Crash Diets

Calories Nutrition Food Exercise ConceptShutterstock

Crash diets or extreme calorie restriction can be tempting for quick results, but they're often counterproductive. Fitness expert Jillian Michaelswarns, "When you starve the body, you're telling your body, 'Oh my god, food is really scarce.' This can lead to metabolic damage and the dreaded yo-yo effect."

Neglecting Exercise

Overweight guy sitting on the couch with remote in hand trying to watch some TV.Shutterstock

Contrary to popular belief, exercise plays a crucial role in weight loss. Michaels advises, "If you're trying to lose weight, it's like 80% exercise because you can't starve it off." Neglecting physical activity can significantly slow down your weight loss progress.

RELATED: I Lost 42 Pounds with These 6 High-Protein Meals

Ignoring Macronutrient Balance

Set of natural food high in protein on grey background, top viewShutterstock

Focusing solely on calorie reduction without considering macronutrient balance can lead to nutrient deficiencies and muscle loss. It's important to maintain a balanced diet that includes adequate protein, healthy fats, and complex carbohydrates.

Overexercising

young sports woman working out, running and feeling tired on treadmill in gymShutterstock

While exercise is crucial, overdoing it can be counterproductive. Garcia advises, "Setting overly ambitious goals with physical activity can lead to injury, but also can have feelings of despair if the goals are not met."

Neglecting Sleep and Hydration

Insomnia and social media addiction concept. Young woman uses smartphone while lying in bed at night, tonedShutterstock

Many people underestimate the importance of sleep and hydration in weight loss. Lack of sleep can disrupt hormones related to appetite, increasing the likelihood of overeating. Similarly, dehydration can slow down metabolism and lead to overeating due to thirst being mistaken for hunger.

Relying Solely on the Scale

Female bare feet with weight scale on wooden floorShutterstock

Focusing only on the number on the scale can be misleading and demotivating. Catherine Gervacio, registered dietitian, suggests, "Consider factors like energy levels, mood, sleep quality, and overall health as important markers of success."

RELATED: I'm a Petite Nutritionist and These 6 Signs Show You're Actually Losing Weight

Overlooking Muscle Mass

Happy elderly woman celebrating her fitness achievement after a great outdoor workout session, flaunting her strong bicep. Fit senior woman expressing her pride in her successful exercise routine.Shutterstock

Rapid weight loss often leads to loss of muscle mass along with fat. Gervacio advises, "Focus on your proteins and make sure you get the right amount and kind. Aim for a diet that includes a variety of nutrient-dense foods like fruits, vegetables, lean proteins, whole grains, and healthy fats."

Expecting Immediate Results

Unhappy young woman standing in front of a mirror and holding hands on her bloating stomach.Shutterstock

Expecting dramatic results in a short time can lead to disappointment and giving up. Garcia reminds us, "Weight loss that is sustainable for the long term requires changes that are lifelong and can only be sustained if those changes are something a person can actually do."

Ignoring Professional Guidance

Gym customer is getting advice and suggestion from her personal trainer for exercising plan program and getting her evaluation chart from sample blood test for her workout progress conceptShutterstock

Attempting rapid weight loss without professional guidance can be risky. Garcia emphasizes, "Rapid weight loss can be achieved in a safe and sustainable manner through direct work with a doctor and registered dietitian."

RELATED: Here Is How Much Weight You Can Really Lose on Ozempic, According to a Doctor

How to Lose Weight Sustainably

Healthy young woman weighing herself on scaleShutterstock

While the desire for quick weight loss is understandable, it's crucial to approach it healthily and sustainably. Avoid these common mistakes and focus on long-term lifestyle changes for the best results. As Gervacio says, "Understand that achieving long-term health and sustainable changes takes time. Be patient with yourself, and avoid self-criticism. Focus on progress rather than perfection!" And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

FACT CHECKED BY Christopher Roback
Expert-Recommended

We've consulted with our team of licensed nutritionists and dietitians to bring you informed recommendations for food products, health aids and nutritional goods to safely and successfully guide you toward making better diet and nutrition choices. We strive to only recommend products that adhere to our philosophy of eating better while still enjoying what you eat.

Are you trying to lose weight but aren’t really getting anywhere? According to experts, you might be going about your weight loss journey the wrong way. In fact, even some of the top diet and fitness experts have made weight loss mistakes themselves. Body Network spoke to a few trainers and nutritionists and asked them about the biggest missteps they took on their fitness journeys.


1. Going Overboard with Calorie Counting

CALORIE counting counter application Medical eating healthy Diet conceptShutterstock

While it is good to keep tabs on your food consumption, Risa Sheppard, Master Pilates trainer, creator of The Sheppard Method, advises not to go overboard. “Counting every calorie of every piece of food,” is one of the mistakes she made. “It became time consuming and frustrating.”

Related: I Lost Belly Fat & 17 Pounds With These 6 Simple Hacks

2. Starving Your Body of Carbs

Unhappy Woman refusing to Eat her Pizza Dish in a Restaurant. Disgruntled customer not liking the meal sending it backShutterstock

Mr. America Jason Kozma, a personal trainer in Los Angeles, reveals the biggest mistake he made while preparing for a bodybuilding competition. “I had gotten too heavy bulking up to add more muscle mass,” he explains. He spent four months dieting for a spring show “and still didn’t get in shape.” After a short break he reset his goal to a fall show and dove headlong into his diet. “I was using an extremely low carb approach as I felt I had too much fat yet to burn. What I actually did was I starved my muscles of carbohydrates for so long that at the end my body couldn’t assimilate carbohydrates and I couldn’t ‘pump u’ for the show,” he continues. “My body fat measured lower than ever for this show but I didn’t look as good as I had a year and a half prior at a higher body fat level. The net result was that I lost muscle using this approach: I was actually smaller and lighter than I was before the ‘bulk up.’” Note: He still won the show!

3. Doing Too Much Cardio

young sports woman working out, running and feeling tired on treadmill in gymShutterstock

Diet and fitness expert Adita Yrizarry-Lang, ISCA, NASM, ACE, AFAA, reveals that one of the biggest mistakes she made was doing too much cardio. “When I first started in fitness, this was the prescription…do a lot of cardio. The reality is that you burn more calories when you have muscle on your body, combining weights with cardio is the right way to do it,” she says.

4. Not Looking at Serving Size on Packages

Young woman label on pasta package while shopping food in supermarket.Shutterstock

Yrizarry-Lang claims that another mistake is only looking at calories on a package, and not the serving size. “We were mesmerized by the lo-cal labeling on a package,” she says. “Unfortunately, we never looked at the serving size and then came to realize we were ingesting too many calories at a time.”

5. Falling Victim to Low Fat, Highly Processed Foods

Young woman putting goods on counter in supermarketShutterstock

Just because something is low-fat doesn’t make it healthy. Yrizarry-Lang says that some people consume “too many processed carbs, because they are low fat.” While this might be okay for runners, going for 10 to 20 mile runs, “those carbs convert to fat,” for most of us.

Related: Alexia Clark Flaunts Chiseled Midsection and Reveals 3 Ab Mistakes You Are Making

6. Daily Weigh-Ins

point of view - closeup feet for asian woman measure weight on scaleShutterstock

Weighing oneself every single day is another mistake, says Sheppard. “It can be discouraging,” she explains. “Try to weigh yourself less and pay more attention to how your clothes are fitting. Remember muscle weighs more fat so if you are on an intense exercise regime the muscle you gain will trim in less but may not show on the scale.”

7. Crash Diets

I'll eat you tiny pea! Weight loss concept. Close up photo portrait of mad lady's eye looking at small one pea on large big plate on tableShutterstock

If a diet seems too good to be true, it probably is. “The all-time worst” mistake people make is going on crash diets. Why? You might “lose weight at the moment” but you will “gain it back with a few extra pounds,” says Yrizarry-Lang. “This slows down the metabolism and makes it even harder to lose weight at a later date.”

8. Focusing on Exercise for Weight Loss

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One of the biggest mistakes people make is “thinking more exercise will cause them to lose weight,” says Sheppard. “80 percent is dieting and 20 percent is exercise,” she reminds.

9. Falling Victim to “Get Thin Fast” Scams

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Sheppard strongly advises against any products or diet that claim to help with rapid weight loss. “Do not succumb to quick weight loss scams or dangerous pills. Remember Rome wasn’t built in a day and neither is weight loss,” she says.

Related: 15 Foods That Fight Fat

10. Comparing Yourself to Others

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Remember that your fitness journey is your own and “comparing yourself to other people” will “only add to your stress and discouragement,” says Sheppard. “We are all built differently with different bone structure and hereditary genes. Love who you are inside and it will reflect on your outside.”

💪🔥Body Booster: Beware of low-fat, processed foods. Unless you run for 20 miles a day, you should probably pass on a highly processed energy bar – those carbs might convert to fat unless you are working them off.

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20 Things to Avoid While on Ozempic
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Evidence-Based

This content references scientific studies and academic research, and is fact-checked to ensure accuracy.

Our team of licensed nutritionists and dietitians strives to be objective, unbiased, and honest.

We are committed to bringing you researched, expert-driven content to help you make more informed decisions around food, health, and wellness. We know how important making choices about your overall health is, and we strive to provide you with the best information possible.

Ozempic can be highly effective for weight loss, but there are definitely some unpleasant side effects to contend with, as the makers of the drug, Novo Nordisk, warn about. Nausea, constipation, and stomach pain are common, but avoiding certain foods and behaviors can make a difference. Here are 20 things to avoid while on Ozempic, to make the most of the medication and encourage healthy weight loss.

Too Much Sugar

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Added sugars, and sugary sodas, can spike blood sugar. Novo Nordisk, the maker of Ozempic and Wegovy, recommends that people avoid sugary foods while on the drug. “If you are taking medication to lower your sugar levels, it is advisable to avoid excess sugar consumption,” Dr. Dina Peralta-Reich, MD, FAAP, FOMA, tells Parade. “Failure to watch what you eat and keep your sugar levels elevated may prevent you from seeing the intended results of the medication,” she shares.”

Ultra-Processed Foods

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Ultra-processed foods can make side effects of Ozempic worse. “This medication slows down gastric emptying and the dense food will move much slower through your intestines, which can make you feel sick [and experience] nausea, vomiting, reflux and abdominal pain,” says Dr. Peralta-Reich. “Someone may not see the results they're looking for either.”

High-Fat Foods

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Foods high in saturated and trans fats can make side effects of Ozempic worse. Some people complain of diarrhea and stomach pains. “I’ve seen an almost dumping syndrome-like response in people taking GLP-1s when they eat simple carbohydrates and high-fat foods,” Dr. Shauna Levy, a specialist in obesity medicine and medical director of the Tulane Bariatric and Weight Loss Center in New Orleans, tells TODAY.

Sitting All Day

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Staying active is important while on Ozempic. Regular exercise is not only important for health, it can prevent muscle loss. The goal should be fat loss, and getting strong.

Not Hydrating

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Don’t forget to drink your water and stay hydrated. Drinking water can help with side effects of Ozempic, especially nausea. Ozempic.com recommends drinking clear or ice-cold drinks to combat any nausea and discomfort.

Too Much Alcohol

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Avoid alcohol on Ozempic, experts advice. “One, it’s just empty calories. Two, it tends to make people make decisions that they otherwise might not make,” says Dr. Levy. “It could increase hunger, and the whole point of GLP-1s, or at least one of the points, is to decrease hunger. So it sort of negates their purpose.”

Be Mindful of Portions

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Ozempic keeps food in the stomach longer, so bigger portions can cause discomfort. “Understanding that overall portions are smaller on these medications, we want to optimize nutritional intake and consume the ‘best’ calories available,” obesity medicine physician Dr. Christopher McGowan tells TODAY. “The focus should be on lean protein, healthy fruits and vegetables, adequate fiber and adequate fluid intake.”

Be Mindful of Coffee

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“Overall, coffee is perfectly fine to consume, but for some individuals can lead to stomach irritation,” says Dr. McGowan. “Therefore, I recommend drinking coffee in moderation, such as one to two cups a day. Patients should also be mindful of calorie-dense additives, like cream and sugar.”

Don’t Skip Meals

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It’s easy to skip meals when on Ozempic, but make sure you’re getting enough nutrition. Some people have even become malnourished as a result of not eating. “It’s never healthy to not eat,” Dr. Hwang said. Dr. Janice Jin Hwang, the division chief of endocrinology and metabolism at the University of North Carolina School of Medicine tells the New York Times.

Don’t Consider It a Quick Fix

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Ozempic should be part of a long-term health plan. “It’s important to note that if you start taking either of these drugs for weight loss, your body may get used to it, establishing a new normal,” says UC Davis Health. This can cause your weight to plateau. Research has shown that if you stop taking Ozempic (or Wegovy), it's likely that you will gain back the weight you lost.”

Same Unhealthy Lifestyle

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Don’t continue an unhealthy diet and assume it’s ok because of Ozempic. “You can likely lose weight on semaglutide medications without changing your diet and activity behaviors, but these lifestyle changes will make the treatment more effective,” Richard Siegel, MD, tells the Friedman School of Nutrition Science and Policy. “Also, we don’t know if weight loss will have the same health benefits if one does not change their behaviors.”

Protect Your Health

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Some doctors warn that taking Ozempic can make people complacent about their health. “It is important to remember that obesity is heterogenous, chronic and complex,” Vijaya Surampudi, MD, physician nutrition specialist and assistant director of the UCLA Weight Management Program (RFO), tells UCLA Health. “There is no cure for obesity. It requires lifelong treatment that’s not one size fits all.”

Carbonated Beverages

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Ozempic slows down digestion, keeping food in your stomach for longer. This causes a feeling of fullness and some unpleasant side effects for some people like belching. Stick to still water as carbonated beverages can make stomach issues worse.

Long-Term Goals

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If you plan on only taking Ozempic or Wegovy for a short while, it’s likely your weight will come back on. “In one trial of Wegovy, people regained about two-thirds of the weight lost within a year of stopping the drug,” Dr. Siegel explains. “Lifestyle changes can help maintain weight loss, but it’s unusual to maintain all weight loss once you stop any weight loss medication.”

Refined Carbohydrates

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Refined carbohydrates tend to spike blood sugar, which is exactly what Ozempic is meant to treat. You don’t have to cut these foods out entirely, but be aware it makes it harder for Ozempic to do its job. “Foods like white bread, white rice, crackers, or even cereals may seem like better choices than foods with added sugar, but refined carbohydrates still metabolize as glucose in the body,” Christine Fallabel, MPH, tells Diabetes Strong.

Watch Out For High Fiber

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While many green vegetables are low GI, be careful about the fiber. “If you’re not used to eating a lot of vegetables, you may experience side effects such as bloating and gas, until your body has acclimated to eating a more fiber-filled diet,” Fallabel says.

Junk Food

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Junk food—which you should be avoiding either way for weight loss purposes—often contains high levels of sodium. “Ultra-processed foods are high in sodium, saturated fats and added sugars, which contribute to a range of health problems,” Elizabeth Ko, MD, and Eve Glazier, MD, tell UCLA Health. These include an increased risk of Type 2 diabetes, cardiovascular disease, lowered immune response, certain cancers, dementia and early death.”

Spicy Foods

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Ozempic can cause acid reflux due to slow digestion. Spicy foods can make acid reflux worse, experts warn. However, if acid reflux is not an issue, people can probably enjoy spicy foods if they wish.

Always See a Medical Professional

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Ozempic should only be prescribed by a medical professional. “Typically, I prescribe Ozempic for diabetes and have more often prescribed Wegovy for weight loss,” endocrinologist Alyssa Dominguez, MD, tells Keck Medicine. “I have used Ozempic, sometimes, off-label for weight loss, though getting insurance approval for that can be challenging.”

Fried Foods

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Fried, greasy foods can make Ozempic stomach issues worse. “Foods high in fat can make digestive side effects worse. Since food hangs around longer in the stomach, it has more time to cause problems,” Sarah Bullard, MS, RD, LD, tells Signos. “Some studies have shown that consuming too much fat can increase symptoms of fullness, nausea, and bloating in individuals with digestive issues and heartburn. Reducing fat intake resolved symptoms.”

💪🔥Body Booster: A whole foods Mediterranean diet is ideal while taking Ozempic.

Sophie van Oostenbrugg gainsbybrains
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Evidence-Based

This content references scientific studies and academic research, and is fact-checked to ensure accuracy.

Our team of licensed nutritionists and dietitians strives to be objective, unbiased, and honest.

We are committed to bringing you researched, expert-driven content to help you make more informed decisions around food, health, and wellness. We know how important making choices about your overall health is, and we strive to provide you with the best information possible.

Do you want to get your glutes sculpted for summer? Sophie van Oostenbrugg is a fitness trainer and the founder of the Gains with Brains app. She regularly shares workouts with her 2.4 million Instagram followers on how to burn fat and build muscle. “I grew up hearing that women should be as small as possible. That’s why I loved being able to share my bulking journey on social. I’ve done 2 bulks so far.. and I was thinking about starting and sharing a 3rd one,” she wrote in a recent post. She also revealed her “medium leg day” workout, which will help you tone up fast.

She Does Multiple Leg Days a Week

“I have good news today..it’s a medium leg day!!!🫣🤭sooo I split my leg workouts & currently have lighter, medium and heavier days. this helps me with recovery, train through a variety of rep ranges and make it more enjoyable,” she explains in the post.

She Does 8 to 12 Reps of Each Exercise

In the video she explains that she has “multiple leg days per week.” She goes onto reveal all of the exercises she does with “rep ranges from 8 to 12.”

RDLS

“I started with RDLs, four sets of eight,” Sophie reveals. To do Romanian deadlifts, start with both legs pressed evenly on the floor. “Slightly bend knees while bending over,” says The Body Network’s Resident RDN, The Diet Diva, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian. “Keep your arms pointing down toward the floor and lower with you almost touching the floor. Keep hips and shoulders square facing forward throughout the exercise. Return to standing.” She suggests repeating 10 to 12 times with the right leg and repeating on the left side. “Progression includes holding a weight in the arm pointing toward the floor,” she adds.

Sumo Squat with Kettlebell

“Then I moved on to a sumo squat with kettlebell. You know the deal, form over everything, so go slow and control the weight,” she says. Sumo squats are similar to regular squats, only you point your toes outward.

Glute Bridges

“Then I did glute bridges,” Sophie continues. You can do glute bridges with or without weights.

Cable Step Up

Next up? Cable step ups, using an exercise block. “These are great as they help with balance and therefore they're easier to overload,” she says.

Seated Leg Curl

She sits down at a machine. “Then I did a seated leg curl,” she says.

Core Exercise

“I finished with some core exercises,” Sophie concludes. “I want to get my core as strong as humanly possible so I can keep recording more intense ab workouts.”

💪🔥Body Booster: Try splitting up your workouts into light, medium, and intense days to allow your body ample time needed to recover.

Joyy Maria joyymaria
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Evidence-Based

This content references scientific studies and academic research, and is fact-checked to ensure accuracy.

Our team of licensed nutritionists and dietitians strives to be objective, unbiased, and honest.

We are committed to bringing you researched, expert-driven content to help you make more informed decisions around food, health, and wellness. We know how important making choices about your overall health is, and we strive to provide you with the best information possible.

Do you want to accelerate your weight loss? Go on a hot girl walk. Joy Maria (@therealjoyymaria/video) is a weight loss influencer and mother who lost 70 pounds in less than 11 months. One of her secret weight loss weapons? “Hot girl walks,” she reveals in a video. “Walking is a thousand percent, the most underrated way to lose weight,” she adds, “and one of my favorite things to do is walk.” Here is everything you need to know about how she lost weight, including some great walking tips.

She Recommends Walking After a Workout to “Cool Down

“I love walking after training because it's low impact, and my trainer's pretty intense. So it's just kind of like my cool down. I can listen to podcasts, I can answer emails, I can talk on the phone, scroll on TikTok, whatever. So get to walking, sis,” she says.

Calorie Deficit

In another video she details “exactly” how she went from 230 pounds to 160 pounds in 10 to 11 months. “If somebody is telling you that you can lose weight without being in a calorie deficit run because they're lying,” she continues, calling it “the most important step” to losing weight. “I know you guys have heard the saying, you cannot outrun a bad diet, and it's so true. Google, TDEE calculator. From there, put in your information. I'm gonna tell you exactly how many calories you need to eat. I ate about 1600 to 1800 calories daily, just depending on my activity level for the day. If I did two workouts that day, I would eat closer to 1800. If I had a more sedentary day, I would eat closer to 1500 to 1600.”

Meal Plan

Next she recommends a meal plan. “I have a seven day meal plan available at the top of my profile. It just makes it really easy when you're going to a grocery shop, when you're first starting out, when things are structured, it's gonna make it a lot easier to follow and just to stay consistent, not skipping breakfast, especially if we're exercising.”

Here Is What She Eats in a Day

Her favorite breakfast is “avocado toast on sourdough bread, one hard boiled egg,” which she seasons, adding truffle hot sauce, two pieces of bacon, and one piece of sausage. “High protein, good, healthy fat, and a healthy balance of carbs,” she says. “This can also be a breakfast or a lunch because it is super filling.” Another favorite is yogurt bowls made with Dannon Light and Fit Greek yogurt with granola blackberries and blueberries. She also likes tunacado sandwiches with sourdough bread, cheese, tomato, avocado, and pesto basil spread. For dinner she might have a small bowl of Turkey chili.

Hydration

She also drinks “a ton” of water, “like a gallon of water a day,” she says. The U.S. National Academies of Sciences, Engineering, and Medicine recommends that men should drink about 15.5 cups (3.7 liters) of fluids a day and women about 11.5 cups (2.7 liters) of fluids. Why is hydration so important? Water helps get rid of waste through urination, perspiration, and bowel movements, keeps your temperature normal, lubricates and cushions joints, and helps protect sensitive tissues, according to Mayo Clinic.

Working Out

Working out is the “second most important part,” she says. “I was taking group classes when it first started. They were high intensity bootcamp. From there, I got a trainer at the same gym. I also work out on my own. If the gym intimidates you, I strongly recommend you guys try some group fitness classes. They're a really great way to hold yourself accountable because you're in a group setting and the people around you can motivate you,” she adds. “I incorporated Pilates about nine to 10 months into my fitness journey, and I wish I would've done it sooner.”

💪🔥Body Booster: If you are working out but not seeing the weight loss results you desire, add walking to your routine every day.