ParrotPal Protein calculator

GLP-1 nutrition: guides, meal plans and data

Eating well on GLP-1 medication mostly comes down to protein first, small plain portions, and some strength work. These guides turn that into meals, swaps and numbers, and our data pages show what members using these medicines actually log.

Updated 9 October 2026 · By the ParrotPal team

Key facts

ParrotPal publishes free guides for people using GLP-1 medication such as Mounjaro, Wegovy, Ozempic and Zepbound: meal plans, protein targets and what to limit. They are general information, not medical advice, and never advise on doses or side effects. Your prescriber, GP or pharmacist is the person to ask about your medicine.

Start here

3 steps
  1. Work out your protein number with the protein calculator.
  2. Pick a week of meals from the 7-day meal plan.
  3. Check your habits with the free LeanShield score.

Guides

Data from our members

Where to get advice

Your prescriber, GP or pharmacist for anything about your medicine; a registered dietitian for a personal eating plan. If you feel unwell, contact them or NHS 111.

What the research says

  • A 2025 joint advisory from four US nutrition and obesity societies notes that higher protein targets, such as 1.2–1.6 g per kg a day, have been proposed during active weight reduction (or an absolute 80–120 g a day), and that protein intake in adults should not fall below 0.4–0.5 g per kg a day.

    Mozaffarian D, Agarwal M, Aggarwal M, et al. (2025). Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society. Obesity 33(8):1475–1503. doi:10.1002/oby.24336

  • In the STEP 1 trial, body scans in a substudy found lean mass made up about 4 in every 10 kilos lost (5.3 kg of 13.6 kg). Lean mass includes muscle, organs and water.

    Wilding JPH, Batterham RL, Calanna S, et al. (2021). Once-weekly semaglutide in adults with overweight or obesity. New England Journal of Medicine 384(11):989–1002. doi:10.1056/NEJMoa2032183

  • In a body-scan substudy of the SURMOUNT-1 trial (160 people), about 75% of the weight lost was fat and 25% lean mass, the same split as in the placebo group.

    Look M, Dunn JP, Kushner RF, et al. (2025). Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight. Diabetes, Obesity and Metabolism 27(5):2720–2729. doi:10.1111/dom.16275

Research describes the people who were studied. Where we quote our own members’ figures, they are what members logged, and the method is on our methodology page.

ParrotPal’s LeanShield score shows whether your day protects lean mass: protein, strength work and eating enough. 4.7★ on the App Store · iPhone. Get it on the App Store

Questions people ask

What should I eat on GLP-1 medication?

Protein first at each meal, then vegetables or fruit, then starchy food if there’s room, in small, plain portions. The GLP-1 diet plan and the 7-day meal plan turn that into meals.

Does ParrotPal prescribe or sell GLP-1 medication?

No. ParrotPal is a food and habit tracking app. It doesn’t sell, supply or recommend any medicine.

Related guides and data

Please read. This page is general information, not medical advice. It isn’t tailored to you and doesn’t replace advice from your prescriber, GP or dietitian. If you have diabetes, kidney disease, a history of disordered eating or any other medical condition, check with them before changing how you eat or exercise. Protein counts are estimates.

Mounjaro® and Zepbound® are registered trademarks of Eli Lilly and Company, and Wegovy® and Ozempic® of Novo Nordisk. ParrotPal isn’t affiliated with or endorsed by either company, and doesn’t sell, supply or recommend any medicine. LeanShield™ is ParrotPal’s muscle protection score: it rates the habits linked to protecting muscle, is not a medical device and doesn’t measure muscle.