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How much protein do you need on a peptide protocol?
Protein requirements change significantly depending on your protocol goal. GLP-1 users need more than they think. Recovery protocols need consistent intake even with reduced training. Calculate your exact target below.
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Your daily protein target
Protein requirements vary significantly by protocol goal and activity level.
160g
Daily total
53g
Per meal (3 meals)
2.0g/kg
Per kg bodyweight
Top sources to hit 160g daily
How this connects to your protocol
On GLP-1 protocols, hitting protein targets is your most critical nutritional variable. Semaglutide suppresses appetite — the risk is eating too little protein and losing muscle alongside fat. This number protects your lean mass.
Targets are evidence-based estimates. Consult your practitioner for personalised advice.
Why protein targets differ by protocol goal
Most protein calculators give you a single number based on activity level alone. But when you're on a peptide protocol, your protein requirements are shaped by what the peptides are doing — not just how hard you're training.
GLP-1 protocols (semaglutide, tirzepatide)
GLP-1 medications suppress appetite by 30–39% on average. The risk isn't eating too much — it's eating too little protein. When you're in a significant caloric deficit with reduced hunger signals, muscle loss becomes a real risk. Hitting 1.8–2.2g per kg of bodyweight ensures your body uses fat for fuel, not muscle tissue. This is the single most important nutritional variable for anyone on a GLP-1 protocol.
GH secretagogue protocols (Ipamorelin, CJC-1295, MK-677)
Growth hormone signals muscle protein synthesis — but only if amino acid substrate is available. A GH peptide protocol without adequate protein is like sending a construction crew to a building site with no materials. Aim for 2.0–2.4g per kg, distributed across 4–5 meals to maintain a sustained anabolic signal throughout the day.
Recovery protocols (BPC-157, TB-500)
Tissue repair is protein-expensive. BPC-157 and TB-500 direct your body's repair signals — but those signals build with amino acids from dietary protein. Even during reduced training, protein intake must remain high. L-glutamine (from protein) is specifically the primary fuel for gut enterocyte repair, directly supporting BPC-157's mechanism of action.
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