If you’re taking Wegovy, aim for roughly 1.2 grams of protein per kilogram of body weight each day, or about 0.55 grams per pound. For someone weighing 200 pounds, that works out to around 110 grams of protein daily. This number is higher than the standard recommendation for the general population, and there’s a specific reason: protecting your muscles while the drug helps you lose fat.
Why Protein Matters More on Wegovy
Wegovy works partly by suppressing appetite, which means you’ll eat less overall. That’s the point, but it creates a problem. When your body is in a calorie deficit, it doesn’t exclusively burn fat. It also breaks down lean tissue, including muscle. A systematic review of semaglutide clinical trials found that lean mass loss ranged from nearly 0% to 40% of total weight lost, depending on the individual. That’s a wide range, and the people on the lower end of muscle loss tend to be the ones eating enough protein and staying physically active.
Losing muscle isn’t just a cosmetic concern. Muscle tissue drives your resting metabolism, meaning it burns calories even when you’re sitting still. Lose too much of it and your body needs fewer calories to maintain its new weight, which makes regain more likely after you stop or reduce the medication. Muscle also protects your joints, supports bone density, and helps with everyday tasks like climbing stairs or carrying groceries.
How to Calculate Your Target
The 1.2 grams per kilogram recommendation comes with an important caveat if you’re at a higher weight. Clinical guidance suggests capping the calculation at a body weight corresponding to a BMI of 30, rather than using your actual weight. This prevents the target from becoming unrealistically high for people with significant obesity.
Here’s what that looks like in practice. If you’re 5’6″ and weigh 260 pounds, a BMI of 30 for your height corresponds to roughly 186 pounds (about 84 kilograms). You’d calculate based on 84 kg, giving you a daily target of about 101 grams of protein. If you’re closer to a BMI of 30 already, just use your current weight. Multiply your weight in pounds by 0.55 to get a quick estimate in grams.
Spreading Protein Across Meals
Your body can only use so much protein at once for muscle repair. Research on body composition during weight loss found that distributing 25 to 30 grams of protein per meal across the day improves 24-hour muscle protein synthesis compared to loading most of your protein into a single meal. This is especially relevant on Wegovy because the appetite suppression can make it tempting to skip meals or eat very little at breakfast and lunch, then try to catch up at dinner.
If your target is 100 grams, that might look like 30 grams at each of three meals and a 10-gram snack. The challenge is that Wegovy can make eating feel like a chore, particularly in the first few months. Planning protein-rich foods you actually enjoy, and that go down easily when your appetite is low, becomes a practical skill worth developing.
High-Protein Foods That Work With Reduced Appetite
When you’re not hungry, dense, heavy meals are hard to finish. Foods that pack a lot of protein into a small volume tend to work best:
- Greek yogurt: about 15 to 20 grams per cup, easy to eat even when appetite is minimal
- Eggs: 6 grams each, versatile and easy to prepare in batches
- Cottage cheese: roughly 25 grams per cup, pairs well with fruit
- Chicken or turkey: about 25 grams per 3-ounce serving
- Protein shakes: 20 to 30 grams per serving, useful when solid food feels unappealing
- Canned tuna or salmon: around 20 grams per can, requires no cooking
Protein shakes deserve a special mention here. Many people on Wegovy find them genuinely helpful on days when nausea or fullness makes a real meal difficult. They’re not a perfect substitute for whole food, but hitting your protein target with a shake beats missing it entirely. Look for options with at least 20 grams of protein and minimal added sugar.
What Happens if You Don’t Get Enough
Falling short on protein while on Wegovy accelerates exactly the kind of weight loss you don’t want. Instead of losing mostly fat, your body pulls more heavily from muscle. Over the course of months, this can leave you lighter on the scale but weaker, with a slower metabolism and less muscle definition. Some clinicians refer to this as “skinny fat,” where someone reaches a lower weight but has a higher body fat percentage than expected.
Inadequate protein during rapid weight loss has also been linked to hair thinning. Hair follicles are metabolically active and sensitive to nutritional deficits. While hair loss on GLP-1 medications like Wegovy isn’t entirely preventable, ensuring adequate protein and overall nutrition reduces the severity for many people.
Resistance Training Amplifies the Effect
Protein alone doesn’t preserve muscle. It provides the raw material, but your body needs a reason to keep that tissue around. Resistance training, whether with weights, bands, or bodyweight exercises, sends the signal that muscle is being used and shouldn’t be broken down for energy. The combination of adequate protein and regular strength training two to three times per week is the most effective strategy for maintaining lean mass during Wegovy-assisted weight loss.
You don’t need to train like a bodybuilder. Even basic movements like squats, rows, and presses performed consistently make a measurable difference. The key is doing enough that your muscles experience challenge, which triggers the repair process that protein supports.