How Much Protein Do You Need on a GLP-1?

Educational content, reviewed for accuracy against published clinical literature. Not medical advice.

Knowing you need “more protein” is one thing. Knowing exactly how much to aim for is another. Here is how to calculate a personal target that aligns with research recommendations.

The Basic Calculation

A practical evidence-based range for many adults during active weight loss is about 0.55 to 0.73 grams of protein per pound of body weight per day (1.2 to 1.6 g/kg/day). This is a general range, not a universal prescription:

• Step 1: Start with the body weight your clinician or dietitian recommends using for the calculation
• Step 2: Multiply pounds by about 0.55 for the lower end of the general range
• Step 3: Multiply pounds by about 0.73 for the upper end of the general range

Example using 180 pounds solely to show the math:

• Lower end: 180 x 0.55 = about 99 grams
• Upper end: 180 x 0.73 = about 131 grams
• This is only an example. For people with obesity, using current body weight may overestimate protein needs, so adjusted weight, goal weight, lean mass, or an absolute target may be more appropriate.

Choosing Your Target

Starting point: Use an individualized target that is realistic for your size, health conditions, activity level, and current intake.

If you are doing regular resistance training or are at higher risk of lean-mass loss, your clinician or dietitian may recommend a higher target within an individualized range.

If you have kidney disease or another condition that changes protein requirements, get individualized guidance rather than using a general formula.

A Note on Goal Weight

Some healthcare providers suggest calculating protein needs based on your goal weight rather than current weight, especially if you have significant weight to lose. This can make targets more achievable. Discuss which approach is right for you with your provider.

Starting Where You Are

If your current protein intake is much lower than these targets, gradual increases may be easier to sustain. Even increasing by 20 to 30 grams per day is a meaningful improvement.

How Blum Helps

• Daily protein target sets a personalized goal based on your body, and updates as your weight or activity changes
• Real-time progress shows how close you are to your target throughout the day
• Food logging by AI photo or voice makes it easy to see exactly where your protein is coming from
• Blum’s Personalized GLP-1 Meal Planner can build high-protein recipes to close the gap, with ingredients ready to send to Instacart

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Key Takeaways

• A practical range for many adults during active weight loss is about 0.55 to 0.73 g per lb of body weight per day (1.2 to 1.6 g/kg/day), individualized to the person
• An absolute target such as 80 to 120 grams per day can be a practical alternative for some adults, but needs vary and should be individualized
• People doing resistance training or at higher risk of muscle loss may benefit from the higher end of an individualized target
• For people with obesity, using actual body weight can overestimate protein needs, so adjusted weight, lean mass, or an absolute target may be more appropriate
• Gradual increases are okay if current intake is low
• Talk to your healthcare provider if you have kidney disease or other conditions that affect protein metabolism, or need help determining the right target for your situation.
• This is general educational information. Please discuss your specific situation with your healthcare provider.

Sources

1. Leidy HJ et al. The role of protein in weight loss and maintenance. Am J Clin Nutr 2015.
2. Mozaffarian D et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint Advisory from ACLM, ASN, OMA, and TOS. Am J Clin Nutr 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC12612741/

Related Articles

• Not Eating Enough on a GLP-1: The Under-Eating Trap
• Tired on Your GLP-1? Why Fatigue Happens and How to Fix It

This article is general educational information about GLP-1 medications and is not medical advice. It does not replace guidance from your prescriber or pharmacist. Always follow your healthcare provider’s instructions, and contact them about any symptom that is severe, persistent, or concerning.