What to Eat on a GLP-1: Foods That Help (and Foods to Avoid)

Your GLP-1 medication (such as semaglutide/Wegovy or tirzepatide/Zepbound) works by helping you feel full sooner and reducing food cravings. Because you will naturally eat less, it is important to make every bite count by choosing nutrient-rich foods. The tips below will help you get the most from your medication, protect your muscles and bones, and reduce common stomach side effects.

Your GLP-1 Nutrition Framework: MEAL

Researchers writing in JAMA Internal Medicine organize eating on a GLP-1 around the MEAL approach:[2]

• M — Muscle Maintenance: eat enough protein and stay active
• E — Energy Balance: choose smaller, nutrient-dense meals
• A — Avoid Side Effects: limit foods that trigger nausea, constipation, or reflux
• L — Liquid Intake: drink plenty of water throughout the day

How to Eat on Your Medication

Eat smaller, more frequent meals. Instead of two or three large meals, aim for four to six smaller meals or snacks spaced about 3–4 hours apart. Eating on a regular schedule — even when you are not very hungry — helps prevent nausea and keeps your energy steady.

Eat slowly and stop when you feel comfortably full. Your medication increases the feeling of fullness. Eating past that point is a common trigger for nausea and vomiting.

Prioritize protein at every meal. Protein helps you maintain muscle while losing weight. Aim for at least 60–75 grams of protein per day (or about 1.2–1.5 grams per kilogram of your body weight).[1][3] Good sources include:

• Chicken, turkey, and other lean poultry
• Fish and seafood
• Eggs
• Greek yogurt and cottage cheese
• Beans, lentils, and tofu
• Nuts, seeds, and nut butters

Try eating your protein first at each meal to make sure you get enough before you feel full.

Fill your plate with fruits and vegetables. Choose a variety of colorful options — berries, leafy greens, broccoli, carrots, tomatoes, and squash are all excellent choices. These provide vitamins, minerals, and fiber.

Choose whole grains over refined grains. Oats, quinoa, brown rice, and whole-grain bread provide sustained energy and fiber. Avoid white bread, pastries, and other refined carbohydrates when possible.

Include healthy fats in moderation. Olive oil, avocado, nuts, and seeds support vitamin absorption and overall health.

Stay well hydrated. Drink at least 2–3 liters (about 8–12 cups) of water per day. Your medication may reduce your sense of thirst, so set reminders to drink throughout the day. Dehydration can cause serious problems, including kidney injury, especially if you are experiencing vomiting or diarrhea.

Foods to Choose vs. Foods to Avoid

The table below, based on a joint advisory from four major nutrition and obesity medical societies, summarizes the best food choices while on your medication and the foods to limit or avoid.[1]

✅ Foods to Choose	❌ Foods to Limit or Avoid
Fruits: berries, apples, citrus fruits, bananas, grapes, avocado	Refined carbohydrates: white bread, pastries, cookies, candy, added sugars
Vegetables: broccoli, leafy greens, tomatoes, carrots, peas, squash	Sugary drinks: soda, juice, sweetened coffee drinks
Whole grains: oats, quinoa, brown rice, whole-grain bread and pasta	Red and processed meats: bacon, sausage, hot dogs, deli meats
Dairy: yogurt, milk, cheese	Fast food: burgers, fried chicken, french fries
Lean proteins: chicken, turkey, fish, seafood, eggs	Sweets and savory snacks: chips, candy bars, ice cream
Nuts and seeds: almonds, peanuts, chia seeds, hemp seeds	Alcohol: beer, wine, liquor
Healthy fats/oils: olive oil, canola oil, avocado oil
Ginger or peppermint tea (can help settle your stomach)

Foods and Drinks That Can Worsen Stomach Side Effects

The most common side effects of GLP-1 medications are nausea (about 1 in 3 people), diarrhea, vomiting, and constipation. These are usually worst when you first start the medication or when your dose increases, and they typically improve over time.[4] The following foods and drinks can make these symptoms worse:

Nausea and vomiting triggers:

• Fried and greasy foods (french fries, fried chicken, fast food)
• High-fat foods (heavy cream sauces, rich desserts, fatty cuts of meat)
• Spicy foods (hot peppers, heavy seasoning)
• Very sugary foods and sweets
• Carbonated beverages (soda, sparkling water)
• Alcohol
• Very large meals or portions

Constipation triggers:

• Not drinking enough water
• Low-fiber diets (mostly processed or refined foods)

Diarrhea triggers:

• Large, high-fat meals
• Alcohol
• Excessive sugar or artificial sweeteners

Heartburn/reflux triggers:

• Spicy and fatty foods
• Lying down within 2–3 hours of eating
• Large portions

Tips to Manage Stomach Side Effects

• For nausea: eat a small breakfast even if you feel queasy — skipping meals can actually make nausea worse. Try ginger tea or peppermint tea, which may help settle your stomach.
• For constipation: gradually increase fiber-rich foods like prunes, dried fruits, vegetables, and whole grains. Drink more water. Ask your doctor about a fiber supplement (like psyllium/Metamucil) or a stool softener (like docusate/Colace) if diet changes are not enough.
• For diarrhea: avoid large or greasy meals. A fiber supplement can help add bulk to your stool.
• For heartburn/reflux: eat smaller portions, avoid spicy and fatty foods, and do not lie down for 2–3 hours after eating.

Vitamins and Supplements

Because you are eating less overall, you may not get enough of certain vitamins and minerals. Talk to your doctor about whether you should take:

• A daily multivitamin
• Vitamin D and calcium (important for bone health)
• Vitamin B12
• Other supplements based on your individual needs

When to Call Your Doctor

Contact your doctor's office if you experience:

• Nausea or vomiting that does not improve or prevents you from eating or drinking for more than a day
• Signs of dehydration (dark urine, dizziness, rapid heartbeat)
• Severe abdominal pain
• Severe constipation or diarrhea lasting more than a few days

Key Reminders

1. Eat small, regular meals — do not skip meals
2. Protein first at every meal
3. Drink plenty of water throughout the day
4. Avoid greasy, fried, spicy, and sugary foods
5. Eat slowly and stop when comfortably full
6. Stay active — exercise helps preserve muscle and supports digestion