Eating and exercise
The medicine is one part of the picture. This section covers the ways people eat and move while using it, and sorts what has been tested from what is simply popular.
How the pages are organized
Every page here splits its information into three kinds, each with its own label.
Randomized trials and reviews that pool them. This is the strongest kind of evidence, and it is reported with the numbers.
Advice from professional societies and clinicians, built on trials plus clinical experience. Useful, and still opinion where trials are missing.
What large numbers of people report online and in clinics. Nobody checked it, so it is not proof of anything.
A lot of what people do with food on these medicines is anecdotal. It comes from the experience of very large numbers of people rather than from trials, and not all of it is settled science.
We cover it anyway. Enough people say these approaches help that you will run into them in clinics, forums and conversations with friends, and you deserve to know what stands behind each one. The pages keep the experience separate from the evidence so you can weigh them yourself.
Eating styles and exercise
Protein and high-protein eating
Protein helps protect muscle during weight loss, and a smaller appetite can make it hard to eat enough.
Constipation on GLP-1 medicines
Constipation is one of the most common side effects of GLP-1 medicines.
Nausea, fullness and food
Nausea is the most common side effect of GLP-1 medicines.
Hydration and fluids
Fluids matter on GLP-1 medicines mostly because vomiting, diarrhea and eating less can leave you short of fluid.
Eating enough and avoiding nutrient gaps
When appetite drops, you can fall short on protein, vitamins and minerals without noticing.
Exercise and strength training
Exercise is one of the few add-ons tested alongside a GLP-1 medicine in a year-long trial.
Mediterranean-style eating
Mediterranean-style eating centers on vegetables, fruit, beans, whole grains, nuts, fish and olive oil, with little processed food.
Low-carb and keto eating
Low-carb eating cuts back on bread, sugar and starch.
Intermittent fasting
Intermittent fasting means eating only within certain hours or on certain days.
Alcohol on GLP-1 medicines
Expert guidance says alcohol can worsen nausea and reflux on GLP-1 medicines and should be kept low.
Eating after you stop
Weight usually comes back after stopping a GLP-1 medicine.
Already in the beginner guide
- Chapter 8: Eating well on medication, covering protein, fluids and digestive side effects
- Chapter 9: Protecting muscle and strength
What is still unknown
- Almost no randomized trial has tested a specific eating style in people who are taking these medicines.
- Community reports come from people who chose to post, so they lean toward success stories.
- Almost no trial has tested a specific food change for side effects such as nausea, so most practical tips here are expert opinion or community experience.
Not medical advice. These pages describe what has been studied and reported. They do not tell you what to eat. A licensed clinician or registered dietitian who knows your history can.