Lose Abdominal Fat in 90 Days with a Vegan Diet

Vegan and plant-based diets are shown to be effective for weight loss. “Generally speaking, vegan diets are associated with a lower calorie intake than other forms of plant-based diets, resulting in more significant weight loss,” exercise physiologist Brad Dieter tells NASM. “Lower calorie intake is attributed to plant-based diets with higher fiber content, greater food volume, and lower energy density.” While it’s impossible to lose fat in just one spot, burning fat and losing weight overall will lead to less abdominal fat. Here’s how to do it on a vegan diet.

Eat Your Vegetables

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Vegetables are delicious and packed with satiating fiber. “Fill half your plate with vegetables at lunch and dinner,” says Katherine D. McManus, MS, RD, LDN, via Harvard Health. “Make sure you include plenty of colors in choosing your vegetables. Enjoy vegetables as a snack with hummus, salsa, or guacamole.”

Plant-Based Protein

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Getting enough protein is important for overall health, including supporting muscle growth while losing fat. “There are plenty of other foods that can provide you with protein, such as tofu, edamame, quinoa, sorghum, lentils, chickpeas and most beans and legumes,” says the American Heart Association. “And there are many good sources of protein from vegetables, too, including artichokes, asparagus, broccoli, Brussels sprouts, collards, corn, peppers, spinach, sweet potatoes and turnip greens.”

Eat Whole Foods

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Watch out for ultra-processed vegan foods. “Don’t replace meats with highly processed meat substitutes or ‘vegan junk food,’” says the American Heart Association. “Instead, choose high-quality, nutrient-dense plant-based foods. A recent study showed that eating primarily these types of food, such as vegetables, fruits, whole grains, beans, legumes and nuts, was associated with a lower risk of death from cardiovascular diseases.”

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Refined Grains

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Be mindful of added sugars and refined grains. “Refined grains, sweets and junk food are troublemakers for everyone, not just vegans,” cardiologist Jeffrey Soble, MD, tells RUSH University Medical Center. “And vegans and nonvegans alike can fall into the habit of making these items the mainstays of their diet.”

Important Nutrients

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Consider taking supplements to support your vegan diet. “Compared to the vegetarian diet, the vegan diet seems to offer additional protection against obesity, diabetes mellitus type 2, and hypertension,” says Obesity Medicine. “While there are health benefits to following the vegan diet, special consideration has to be made to ensure that adequate levels of protein, vitamin B12, calcium, vitamin D, and zinc are also consumed.”

Portion Control

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Remember that portion control is still important for someone on a vegan diet. “The caloric intake for someone with obesity on a vegan diet will vary depending on age, gender, weight, height, activity level, and individual goals,” says Obesity Medicine. “However, in general, a safe and effective weight loss approach is creating a calorie deficit of approximately 500-1000 calories per day. This gradual calorie reduction can lead to a sustainable weight loss of about 1-2 pounds per week.”

Whole Grains

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Whole grains are packed with fiber and can help with weight loss. “Include whole grains for breakfast,” McManus says. “Start with oatmeal, quinoa, buckwheat, or barley. Then add some nuts or seeds along with fresh fruit.”

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Enjoy Fruit

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Fruit is the perfect dessert for a vegan trying to lose weight, especially low-sugar varieties. “A ripe, juicy peach, a refreshing slice of watermelon, or a crisp apple will satisfy your craving for a sweet bite after a meal,” McManus says.

Eat, Don’t Drink

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Try to eat food such as fruit in its whole form. “Drinking 100% fruit juice is not the same as eating the whole fruit, since juices can be high in sugar and squeeze out valuable fiber and vitamins,” says Harvard Health. “And many canned plant foods include extra additives, sodium, and sugar.”

Sustainable Changes

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Ease into a vegan lifestyle if that makes it easier to sustain long-term. “A moderate change in your diet, such as lowering your animal food intake by one to two servings per day and replacing it with legumes or nuts as your protein source, can have a lasting positive impact on your health,” Dr. Ambika Satija tells Harvard Health.

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Professional Advice

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If you need help figuring out your diet, talk to a professional. “If you’re thinking about going vegan or vegetarian, it’s a good idea to make a nutrition plan with a physician or a registered dietitian,” says Johns Hopkins Health. “It’s especially important if you have preexisting health conditions such as diabetes, heart disease, obesity or a gastrointestinal disorder.” And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

Losing weight doesn’t have to be complicated. According to one nutrition expert, it all boils down to eating exactly the right amount of various types of food. Courtney Kassis, RD, LDN (@dietitianwithtwins) is a nutritionist and TikTok influencer who dropped 15 pounds in two months with her viral 90-30-50 method. She regularly shares videos about exactly what she did to drop so much weight so fast. Here is everything you need to know about the viral diet – including whether or not our Resident RDN, The Diet Diva, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian, approves.

She Recommends 90 Grams of Protein, 30 Grams of Fiber, and 50 Grams of Healthy Fats

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In one viral TikTok post, Courtney explains the 90-30-50 method. “This structure emphasizes protein (90 grams minimum per day), 30g fiber per day, and 50g healthy fats per day,” she writes.

Protein Helps Balance Hormones and Blood Sugar

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Why is protein important? It is “essential for hormone and blood sugar balance, increases metabolism & promotes satiety,” she says.

Fiber Helps You Feel Fuller and Promotes Gut Health

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As for fiber, it “increases satiety, feeds beneficial gut bacteria, improves gut motility/natural detox processes,” she writes.

Fats Help Balance Blood Sugar and Hormones

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Finally, fats have “anti-inflammatory properties to help improve blood sugar balance, hormone balance (like cortisol & other stress hormones), promotes satiety & allows for fat-burning versus fat-storage.”

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Kassis Previous Consumed Just 30 Grams Protein Per Day

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In another video, Kassis explained that before coining the 90-3–50 diet, she ate only 30 grams of protein per day, but that it left her “tired, hungry and sluggish.”

She Struggled to Lose Weight and Didn’t Feel Well

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“Without protein, our metabolism slows down, and our blood sugar drops, which leads to cravings,” she adds in another clip. “We’re always tired. Hormones are imbalanced. It increases our risk of developing chronic diseases.”

Resident RDN Recommends at Least 60 Grams of Protein for Women and 90 for Men

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According to Collingwood, protein needs depend on body size, gender, and of course, activity level. “Most people will benefit from at least 20 grams of protein per meal (women) and 30 grams per meal (men). If that isn’t enough for the day, then make up more at snack time,” she says.

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Increasing Protein Has Been Linked to Weight Loss

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Clinical trials confirm that consuming more protein than the recommended dietary allowance not only reduces body weight (BW), but also enhances body composition by decreasing fat mass while preserving fat-free mass (FFM) in both low-calorie and standard-calorie diets.

💪🔥Body Booster: Keep track of how much protein, fiber, and healthy fats you consume for a week. If your numbers are low, consider upping them.