GLP-1 Macro Calculator
A calorie target only becomes useful when it turns into food. This calculator builds your daily macros in the order that matters most on GLP-1 treatment: protein first, to help protect muscle, then the remaining calories split between carbohydrates and fat in the style you choose.
How this estimate works
Protein is set first. The calculator takes your body weight in kilograms and applies the 1.2 to 1.6 grams per kilogram range used across GLPKit for protecting muscle during weight loss. The headline split uses the midpoint of that range, 1.4 g per kg, and the protein range itself is shown under the table so you can aim lower or higher inside it.
Protein calories come off your daily target first, at 4 kcal per gram. Whatever calories remain are then split between carbohydrates and fat according to the style you picked: an even split for balanced, 35 percent carbs and 65 percent fat for lower carb, or 65 percent carbs and 35 percent fat for higher carb. Carbohydrates are converted at 4 kcal per gram and fat at 9 kcal per gram, the standard Atwater factors used on food labels.
If you do not have a calorie target yet, the GLP-1 Calorie Calculator can estimate one from your body and activity level. And if you want to focus on protein alone, including a per meal split, the GLP-1 Protein Calculator goes deeper on that one number.
Frequently asked questions
Why does this calculator work out protein first?
On GLP-1 treatment your appetite is lower and total food intake drops, so reaching a protein target matters more for protecting muscle than the exact split between carbs and fat. The calculator sets protein in the 1.2 to 1.6 g per kg range first, then divides the calories that remain between carbohydrates and fat.
Which split style is best on GLP-1 medication?
There is no single best split. Balanced suits most people. Lower carb helps some people feel fuller on fewer calories. Higher carb can suit people who train hard and need the fuel. What matters most is a pattern you can stick with, enough protein, and mostly minimally processed foods.
Should my macro targets change as I lose weight?
They usually come down gradually, because a smaller body needs fewer calories and the protein range is based on body weight. Rechecking every month or so, or after every 10 to 15 lb lost, keeps the targets realistic instead of chasing a number set for a heavier body.