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How much protein you actually need on a GLP-1.

The familiar 0.8 grams per kilogram was set for healthy adults who are not losing weight. In a sustained deficit, with muscle on the line, the target is meaningfully higher.

APLOMB GLP-1 Resource ยท Reviewed by Zachary Poll, Founder

Why the standard number is too low here

The 0.8 g/kg figure is a floor to prevent deficiency in a weight-stable adult. It was never meant for someone in a months-long caloric deficit who is actively trying to keep muscle.

When you are eating less, the body needs more protein, not less, to defend lean tissue against the deficit. Two bodies of evidence converge on the higher target. A meta-analysis of energy-restricted diets found that higher-protein intakes preserved fat-free mass better than standard-protein intakes during weight loss.1 And the PROT-AGE consensus for older adults recommends at least 1.0 to 1.2 g/kg per day, rising toward 1.2 and above for anyone exercising.2

Daily protein targets, grams per kilogram of body weight A horizontal bar comparison: general guideline 0.8, active older adult 1.2, and preserving muscle in a GLP-1 deficit about 1.6 grams per kilogram per day. General guideline 0.8 g/kg Active older adult 1.2 g/kg Preserving muscle in a deficit ~1.6 g/kg 0 1.0 2.0 Protein, grams per kg body weight per day
The target climbs with the deficit. The 0.8 g/kg floor is for weight-stable adults. The PROT-AGE consensus puts active older adults at 1.2; preserving muscle in a sustained deficit pushes practical targets toward 1.5-2.0 g/kg, the range clinicians increasingly use for GLP-1 patients. Figures are general guidance, not a prescription; talk to your clinician about your number.

What that means in real food

For a 70 kg (155 lb) woman, a 1.6 g/kg target is about 112 grams of protein a day, which is more than most people on a GLP-1 manage when appetite is suppressed.

That is the practical problem. The drug that makes weight loss possible also makes large protein-heavy meals unappealing. Spreading protein across the day in smaller, easier servings is the workaround, and a single high-protein shake closes a large part of the gap in one step. A scoop of APLOMB. Protein adds 25 grams, leucine-fortified to the threshold that actually triggers muscle protein synthesis, in something you can drink when a meal feels like too much.

Pair it with training Protein is the raw material; resistance training is the signal that tells the body to spend it on muscle. The two together preserve far more lean mass than either alone. Lift something heavy two or three times a week, even when appetite is low.

Citations

  1. Wycherley TP, Moran LJ, Clifton PM, et al. Effects of energy-restricted high-protein, low-fat compared with standard-protein, low-fat diets: a meta-analysis of randomized controlled trials. American Journal of Clinical Nutrition, 2012. PubMed 23097268
  2. Bauer J, Biolo G, Cederholm T, et al. Evidence-based recommendations for optimal dietary protein intake in older people: a position paper from the PROT-AGE Study Group. JAMDA, 2013. PubMed 23867520

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Editorial content, not medical advice. APLOMB. Protein is a dietary supplement; these statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Protein targets are general guidance and vary with body weight, kidney function, and activity; people with kidney disease in particular should not raise protein without medical advice. Individual results vary.