Protein targets after GLP-1
Protein is muscle insurance.
Target: ~1.5 g/kg body weight per day, 25 to 30 g per meal
Why it matters
Protein is the single most evidence-backed lever for keeping weight off. In a maintenance trial, a 20 percent higher protein intake (18 percent vs 15 percent of energy) cut weight regain by roughly half, independent of total calories.
It works through three mechanisms: it preserves fat-free mass (muscle), which is the main driver of resting metabolic rate; it is the most filling macronutrient, so you stay satisfied on fewer calories; and it has the highest thermic effect, meaning more of its calories are burned in digestion.
After a GLP-1, this matters even more. Appetite hormones rebound while metabolic rate stays low, so protecting muscle keeps your metabolism up exactly when hunger surges. Protein is protective, not a cure: if weight is lost too fast, muscle goes regardless, so pace matters too.
Getting started
Find your target
Multiply your body weight in kilograms by about 1.5. A 70 kg person aims for roughly 105 g of protein a day. Use the protein calculator to do the math.
Anchor each meal
Build each meal around 25 to 30 g of protein first, then add vegetables and whole grains. Eggs, Greek yogurt, fish, poultry, tofu, legumes, and lean meat are easy anchors.
Bridge with snacks
If you fall short, a protein-forward snack (cottage cheese, a shake, edamame) closes the gap, especially helpful when appetite is low or nausea is present.
Track for two weeks
Log protein for a couple of weeks to calibrate your eye. Most people underestimate how much they need.
Do
- Spread protein across meals rather than loading it all at dinner.
- Prioritize whole-food sources; supplement with shakes only to fill gaps.
- Pair protein with fiber and water for steadier fullness.
Don't
- Do not chase extreme intakes; more is not always better and crowds out other foods.
- Do not lose weight so fast that muscle goes with it; speed of loss is the main driver of muscle loss.
- Do not treat protein as a license to skip resistance training; the two work together.
Track it
Frequently asked questions
How much protein should I eat after stopping a GLP-1?
Research on weight-loss maintenance supports roughly 1.5 g/kg of body weight per day, spread across meals at about 25 to 30 g each. This is general education; your needs depend on your body, kidney health, and activity, so confirm targets with your clinician or dietitian.
Does more protein always mean less regain?
Higher protein during maintenance significantly reduced regain in trials, but protein is protective, not a cure. Pace of weight loss and resistance training also matter for keeping muscle.
Sources & further reading
Every claim on this page is drawn from peer-reviewed research, clinical trials, or recognized health authorities. Read the source before making any decision about your health.