GLP-1 protein calculator
See a daily protein range based on published guidance for people taking GLP-1 medications such as semaglutide or tirzepatide.
Not medical advice. Nothing you type leaves this page.
How it works
When you eat much less than usual, part of the weight you lose can be muscle. Published guidance for GLP-1 users suggests aiming for 1.2–1.6 g of protein per kilogram of body weight per day, alongside resistance exercise.
Why an adjusted weight above BMI 30?
Protein needs follow lean body mass more closely than total weight. When your BMI is 30 or more, the calculator uses an adjusted body weight: your ideal body weight (Devine formula) plus 40% of the difference between your current and ideal weight. This avoids targets that are unrealistically high.
Why show grams per meal?
A small appetite makes big meals hard. Splitting your target across 3 meals, or 4 smaller ones, shows what each sitting needs to deliver.
Hit that number without the guesswork.
Protein Plate is an upcoming iPhone app: snap your meal, see your protein, and get small high-protein ideas when you're not hungry.