Why Protein is Crucial When Taking Wegovy
When on Wegovy (semaglutide), your appetite is significantly suppressed, leading to a natural reduction in food and calorie intake. While this is the intended effect for weight loss, it can also lead to a dangerous side effect: losing muscle mass along with fat. Protein is the building block for muscle and is therefore vital to preserve lean body mass during a calorie deficit. Preserving muscle mass is essential for maintaining a healthy metabolic rate and a leaner physique. Additionally, protein helps you feel full for longer, complementing the appetite-suppressing effects of Wegovy and further aiding in calorie control.
The Risk of Muscle Loss
Without adequate protein and exercise, rapid weight loss from medications like Wegovy can cause your body to break down muscle tissue for energy. This is not only counterproductive to a healthy body composition but can also lead to decreased strength, fatigue, and a reduced resting metabolic rate, making it easier to regain weight once treatment ends. A recent study presented at ENDO 2025 highlighted that older adults and women may be at higher risk for lean mass loss while on semaglutide, emphasizing the importance of increased protein intake to mitigate this effect.
How Much Protein Should You Target?
While there is no single 'magic number,' several factors influence your protein needs while on Wegovy, including your current weight, activity level, age, and sex. Most experts recommend a higher protein intake during weight loss compared to the standard dietary allowance.
- General Recommendation: Many healthcare professionals and dietitians suggest aiming for approximately 1.2 to 1.6 grams of protein per kilogram of body weight per day. For a 200-pound (approx. 91 kg) individual, this would translate to about 109 to 146 grams of protein daily.
 - Achievable Target: Given the appetite suppression, aiming for a more conservative, but still effective, target of 60 to 100 grams per day can be a great starting point for many individuals, especially during the initial stages of treatment.
 
It is always best to consult with a doctor or a registered dietitian to determine a personalized protein target that aligns with your specific health needs and weight loss goals.
Practical Strategies for Boosting Your Protein Intake
Meeting your protein goals can be a challenge on Wegovy, especially when experiencing reduced hunger or nausea. Here are some practical tips to help:
- Eat Protein First: Prioritize eating protein at the beginning of your meal. Since you will likely feel full sooner, this ensures you get the most important nutrient in before you lose your appetite.
 - Distribute Intake: Rather than trying to consume a large amount of protein in one sitting, spread your intake evenly throughout the day across smaller meals and snacks. This helps with digestion and keeps you satiated.
 - Incorporate Protein Supplements: If solid food is difficult to manage due to appetite suppression or side effects, protein shakes or bars can be a convenient way to supplement your intake. Look for low-sugar options with 15-25 grams of protein per serving.
 - Opt for Liquid Proteins: High-protein smoothies made with Greek yogurt, protein powder, or milk can be easier to tolerate than heavy meals.
 
High-Quality Protein Food Sources
Focus on lean, nutrient-dense protein sources to maximize your nutritional intake on fewer calories. Incorporating a variety of these foods will help you get a complete amino acid profile.
- Lean Meats and Poultry: Skinless chicken breast, turkey, lean ground beef, and pork loin are excellent choices.
 - Fish and Seafood: Salmon, cod, shrimp, and tuna are packed with protein and often contain healthy omega-3 fatty acids.
 - Eggs: A versatile and complete protein source perfect for any meal.
 - Dairy: Low-fat Greek yogurt, cottage cheese, and milk are great sources of calcium and protein.
 - Plant-Based Proteins: Tofu, tempeh, beans, lentils, edamame, and quinoa are fantastic options for vegetarians and vegans.
 - Nuts and Seeds: While higher in fat, a small handful of almonds or a sprinkle of chia seeds can add protein and fiber to snacks.
 
Protein Power: A Comparison of Lean Protein Sources
To help you visualize your intake, here is a comparison of the protein content and typical serving size for several lean, nutrient-dense options.
| Food (per serving) | Serving Size | Protein (grams) | Notes | 
|---|---|---|---|
| Skinless Chicken Breast | 3 ounces (85g) | ~26g | Low in fat, highly versatile. | 
| Greek Yogurt (Plain, Low-fat) | 6 ounces (170g) | ~17g | Also rich in calcium and probiotics. | 
| Cottage Cheese (Low-fat) | 1/2 cup (113g) | ~12g | Great snack option, can be mixed with fruit. | 
| Lentils (Cooked) | 1/2 cup (100g) | ~9g | High in fiber, supports digestion. | 
| Firm Tofu | 3 ounces (85g) | ~9g | Plant-based, can absorb flavors easily. | 
| Large Egg | 1 egg | ~6g | Quick and easy, complete protein source. | 
| Almonds | 1 ounce (28g) | ~6g | High in healthy fats, good for snacking. | 
Combining Protein with Exercise
For the best results in preserving muscle mass, consuming adequate protein should be combined with regular physical activity, especially resistance training. Incorporating strength training 2-3 times a week can send signals to your body to maintain muscle tissue during weight loss. Even if you have a low appetite, a high-protein diet paired with exercise can help you build a stronger, healthier foundation for the future.
Conclusion: Build a Sustainable Plan
On Wegovy, a high-protein, nutrient-dense diet is your most effective tool for managing appetite, preserving muscle mass, and achieving sustainable weight loss. While the exact daily amount of protein will vary based on individual factors, aiming for around 1.2-1.6 grams per kilogram of body weight is a solid target, with 60-100 grams being a good starting range for many. Overcoming appetite suppression might require smaller, more frequent meals, using supplements, or focusing on easier-to-digest protein sources. Combine these dietary habits with regular exercise, particularly resistance training, to maximize your results. Always consult with a healthcare provider or a registered dietitian for personalized advice and to ensure your nutrition plan supports your long-term health goals while on Wegovy. Remember, it's about making deliberate, healthy choices that you can maintain long after your treatment is complete.
This article is intended for informational purposes only. Consult your doctor or a registered dietitian for personalized dietary advice while taking Wegovy. You can find more comprehensive information on healthy eating on the Mayo Clinic website.