GLP-1 diet
You are trying to eat well on a much smaller appetite.
Reference and calculator, not medical advice. This page explains how something works; it does not tell you what to take. Last reviewed August 2026.
The eating problem on a GLP-1 is not the one most diet advice is written for. Appetite falls sharply and gastric emptying slows, so the constraint becomes volume rather than restraint. The question stops being "how do I eat less" and becomes "how do I fit what I need into far less food".
That reframing matters because it changes what good advice looks like. Nutrient density, protein prioritisation and meal timing become the levers. Willpower, portion control and calorie counting — the things most weight-loss advice is built on — are largely solved for you by the medication, sometimes to a fault.
Common questions
- Why does everyone emphasise protein?
- Weight lost in a large calorie deficit includes lean mass as well as fat. Protein intake and resistance training are the two levers generally cited for limiting that. The difficulty here is mechanical rather than motivational — hitting a protein target when full after a few bites is a planning problem.
- Which foods cause the most trouble?
- Reports cluster consistently around high-fat and fried foods, large volumes at a single sitting, and alcohol. All three are consistent with slowed gastric emptying. Individual tolerance varies widely, and many people find their own list rather than following a general one.
- Should I be tracking calories?
- Many people find the opposite problem: eating enough rather than too little. Persistent under-eating brings its own consequences, which is why nutrient density gets more attention than restriction in this context.
- Do I need supplements?
- A reasonable question for a clinician who can see your intake and bloodwork, not one to settle from a page. The general point is that a much smaller volume of food makes micronutrient adequacy harder to achieve by accident.
- What about hydration?
- Reduced appetite often reduces fluid intake alongside food, and several of the commonly reported effects — constipation, fatigue, headache — overlap with what inadequate hydration produces.
Sources and last review
This page is general reference rather than a dosing table, so it quotes no figures from a label. Nothing here is reviewed by a clinician, and this site does not employ one — which is exactly why what I do publish stays traceable to its source.
- This page carries no product-specific dosing figures. The labels behind everything on this site are listed on the sources page, and the originals live on DailyMed.
Transcribed from the labels above and checked by me — Gavin, who builds this site, takes a GLP-1, and is not a clinician. Last reviewed August 2026. Found an error? [email protected] — I treat corrections as bugs. How this site is built and funded.
Also searched as: glp 1 diet · what is glp-1 diet · what is glp 1 diet · what is a glp-1 diet