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This Fitness Expert Reveals 7 Hidden Weight Loss Mistakes You Need to Stop Doing Right Now

These simple daily habits are sabotaging your results without you even knowing it.

We all have that one friend who spends hours in the gym and claims to eat the perfect diet, yet still can't lose weight. Maybe you're that friend. While you might blame genetics, Will Tennyson, a fitness enthusiast, and YouTube star with over 3 million subscribers, has news for you: "Getting in the best shape of your life and being the best version of yourself is not one of them." Read on to discover the hidden mistakes that could be sabotaging your weight loss journey—and learn exactly how to fix them.

Mistake #1: Trusting 'Healthy' Labels Without Checking Facts

"The best diet is not a diet at all, but a way of life that includes food you enjoy, exercise, and healthy habits," says WebMD. Will demonstrates this in his post with the muffin trap: "People see muffins as a light snack or a side for some reason, but there are more calories in muffins than there are in actual McMuffins." A standard blueberry muffin packs around 430 calories—more than a sausage McMuffin. Adding a "simple" caramel latte brings another 290 calories and 40g of sugar.

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Mistake #2: Ignoring Portion Sizes

WebMD emphasizes that "Food servings have grown larger and larger over the years." They recommend specific portion guidelines: "A cup of fruit should be no larger than your fist, an ounce of cheese is about the same as the size of your thumb from base to tip, and 3 ounces of meat, fish, or poultry is about the size of your palm." Will adds that even healthy foods can become problematic when portions aren't controlled.

Mistake #3: Drinking Your Calories

"While they are convenient and simple, they pack a lot of calories—200 calories for one cup," Will notes about smoothies. WebMD advises to "avoid 'empty calories'" and "steer clear of sugar-containing sodas and fruit drinks." Will emphasizes, "Some things in life are not about getting things down easy."

Mistake #4: Falling for the 'Natural' Food Trap

"Fresh fruits are always better than their dried counterparts," Will warns. He demonstrates how dried mango contains 140 calories in just a quarter cup. "It's just like your fruit steps into an ice bath. It just shrives up—a lot less volume for the amount of calories. This is practically candy. It's super addicting, and you think it's healthy because it's fruit? No, put it back."

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Mistake #5: Assuming All Salads Are Diet-Friendly

"Just because it's on a bed of lettuce doesn't mean it's good," Will cautions about his 700-calorie "healthy" salad. WebMD suggests to "Pile on the salad and super servings of green beans, broccoli, cabbage, kale, or other low-calorie vegetables instead of high-fat foods." Will adds humorously, "Salads are great if you're hungry and you want to stay that way."

Mistake #6: Going Through the Motions at the Gym

"Just being here isn't enough," Will states. While WebMD recommends "Exercise at least 150 minutes each week," Will emphasizes quality: "Every single set should be pretty close to failure, like RPE 8 and above. If you're not going that hard, there's really no point." He adds, "Don't be a Tommy texter. Use this time for you. You're literally in here for 45 minutes to one hour. Use this time to invest into yourself."

Mistake #7: Misunderstanding 'Healthy' Snacks

Will demonstrates how trail mix can be deceiving: "I usually find trail mix to be just an inconvenient way to eat M&Ms. You throw on a season of Young and the Restless, I could go through that bag two times over… before you know it, you're a thousand calories deep in trail mix." WebMD suggests healthier alternatives: "Snack on berries. Dark berries are rich in healthy antioxidants. They're also low in calories and fat and high in fiber."

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Final Word

"There is so much information out there," Will concludes, "and it is really hard to pick what information to actually trust. But I will say this: when it comes to nutrition, find your calories, hit your protein. When it comes to your fitness, lift some weights and get moving. But whatever you do, give it your all. And the secret to life is having balance in whatever you do. And when you have that, you're pretty much unstoppable." And if you enjoyed this article, take advantage of these 31 Fitness Tips Every Beginner Needs to Look Sexy, According to Coaches.

Christopher Roback
Christopher Roback is an experienced news journalist specializing in political, science, and crime news. Read more