Ozempic Side Effects: What to Eat to Ease Nausea and Constipation

October 23, 2026 · By the Nutrition Solutions for Me team

If you’ve started Ozempic, Wegovy, Mounjaro or Zepbound and feel queasy, full fast or backed up, what and how you eat can make a real difference. Smaller meals, plenty of fluids, enough protein and a slow, steady increase in fiber ease the most common stomach side effects for many people.

These medications belong to a group often called GLP-1 medications. They help control blood sugar and appetite partly by slowing how quickly food leaves your stomach. That slower emptying is one reason you feel full sooner, and it’s also why the way you eat matters so much while you take them.

This article is about food and comfort. It does not replace advice from the doctor who prescribed your medication. Never change your dose on your own.

The most common side effects

Stomach and digestion side effects are the most common, according to MedlinePlus from the National Institutes of Health (NIH). They can include:

• Nausea and vomiting
• Diarrhea or constipation
• Stomach pain
• Heartburn or burping

Many people also notice they feel full quickly or have little appetite, which is part of how these medications work.

For many people these are strongest when the medication is started or the dose goes up, and they often ease with time. Food choices won’t remove every side effect, but they can make the difference between a rough week and a manageable one.

How to ease nausea

Eat less at a time

A full plate is harder to handle when your stomach empties slowly. Try a smaller plate, or split one meal into two. Stop eating at the first sign of fullness, even if food is left. You can save the rest for later.

Choose plainer foods on hard days

Greasy, fried and very rich foods stay in the stomach longest and are common nausea triggers. On days you feel queasy, these are often easier:

• Plain toast, crackers, rice or oatmeal
• Eggs, plain Greek yogurt or cottage cheese
• Baked or grilled chicken or fish
• Soups and broths
• Bananas, applesauce or melon

Slow down

Put your fork down between bites and chew well. Eating quickly makes it easy to go past the point of comfortable fullness before your body has a chance to tell you.

Don’t lie down right after eating

Stay upright for at least an hour after a meal. This also helps with heartburn.

Sip, don’t gulp

Small sips of water through the day are usually easier than large glasses with meals. Some people find cold drinks, mint tea or ginger tea soothing.

How to ease constipation

Constipation is common when you eat less food overall. These steps help many people:

• Drink fluids all day. Water, milk, unsweetened tea and broth all count. Fluids help fiber do its job.
• Add fiber slowly. Fruit, vegetables, beans, lentils, oats, chia seeds and ground flax add fiber. Adding a lot at once can cause gas and bloating, so build up over a week or two.
• Move after meals. Even a 10-minute walk helps the bowels move.
• Keep a regular schedule. Eating at similar times each day helps your digestion settle into a rhythm.

Ask your doctor or pharmacist before using laxatives or fiber supplements, especially if you have other health conditions.

How to handle diarrhea

• Keep drinking fluids so you don’t get dehydrated.
• Choose bland, low-fat foods until it settles: rice, bananas, toast, oatmeal, applesauce, eggs and plain chicken.
• Limit greasy foods, very sweet drinks, sugar alcohols (found in many “sugar-free” foods) and large amounts of caffeine or alcohol.

When you’re barely hungry: protect your protein

Low appetite is one of the main reasons these medications work. It can also make it easy to under-eat, especially protein. Eating too little protein while losing weight can mean losing muscle as well as fat. Fruits, vegetables and fluids can also fall short.

Simple ways to stay on track:

• Eat protein first at each meal, then vegetables, then starches.
• Eat on a schedule, such as every 3 to 4 hours, rather than waiting until you feel hungry.
• Keep easy options ready: Greek yogurt, cottage cheese, boiled eggs, string cheese, tofu, edamame, lentil soup, canned tuna or salmon, or a protein shake.
• Think small but often. Three bites of a protein-rich food every few hours adds up.

How much protein you need depends on your body, your health conditions and your goals. A registered dietitian can work out a target that fits you.

If you follow a vegetarian or cultural diet, there are plenty of options too: dal, chana, paneer, tofu, besan chilla, sprouts and yogurt-based dishes can all fit.

Foods and habits to go easy on

• Fried and greasy foods, such as fries, fried snacks and heavy creamy sauces
• Large meals, especially late in the evening
• Very sweet foods and drinks, such as soda, juice and desserts
• Alcohol, which can worsen nausea and affect blood sugar
• Carbonated drinks, if they make you feel bloated

You don’t have to give these up forever. Many people find they can enjoy small amounts once their body adjusts.

When to call your doctor

Food changes help with mild side effects. Some symptoms need medical attention. Call your doctor right away if you have:

• Severe stomach pain that doesn’t go away, with or without vomiting
• Vomiting or diarrhea that stops you from keeping fluids down
• Signs of dehydration, such as dizziness, a very dry mouth or passing very little urine
• Pain in the upper right side of your belly, fever, or yellowing of the skin or eyes
• A lump or swelling in your neck, hoarseness or trouble swallowing

Also tell your prescriber if side effects don’t improve. Sometimes a slower dose increase helps.

How a registered dietitian helps

A dietitian can’t change your prescription, but we can make the medication much easier to live with. At Nutrition Solutions for Me, we help you:

• Build meals that are easy on your stomach and still satisfying
• Set a protein target and find foods you’ll actually eat
• Handle constipation, reflux or low appetite with food first
• Plan meals around work, family and cultural foods
• Keep your results going, including if you lower your dose or stop the medication later

Learn more about our GLP-1 weight management program and how we support weight management and diabetes care. If you’re also considering surgery, read GLP-1 medications vs. bariatric surgery.

We see patients in person in Suwanee and Lawrenceville, GA, and offer video visits in many other states.

Is it covered by insurance? Many private health plans cover visits with a registered dietitian. Medicare Part B covers medical nutrition therapy for diabetes and kidney disease with a doctor’s referral. Coverage varies by plan, so check which insurance plans we accept and verify your benefits. We are happy to help you check.

Ready to feel better on your medication? Book an appointment with one of our registered dietitians, or call us at 678-250-3438.

Sources

• MedlinePlus (National Library of Medicine, NIH): Semaglutide Injection
• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): Prescription Medications to Treat Overweight & Obesity
• NIDDK: Constipation: Eating, Diet, & Nutrition
• Medicare.gov: Medical nutrition therapy services

This article is general information, not medical advice. Talk with your doctor or a registered dietitian about your own health and your medication.

Frequently asked questions

What foods make Ozempic nausea worse?

Greasy, fried and very rich foods, large portions, and very sweet foods or drinks are the most common triggers. These foods stay in the stomach longer, and GLP-1 medications already slow down how fast the stomach empties. Smaller, plainer meals are usually easier to handle.

What should I eat when I have no appetite on a GLP-1 medication?

Start with protein, because it is the nutrient people most often fall short on. Small portions of eggs, Greek yogurt, cottage cheese, tofu, fish, chicken, lentils or a protein shake can help. Eat on a schedule, such as every 3 to 4 hours, instead of waiting until you feel hungry.

How do I relieve constipation on Ozempic?

Drink fluids throughout the day, add fiber slowly (fruit, vegetables, beans, oats, chia or flax), and stay active, even with short walks after meals. Ask your doctor or pharmacist before using a laxative or fiber supplement.

Do Ozempic side effects go away?

For many people, stomach side effects are strongest when starting the medication or after a dose increase, and they often ease over time. Everyone is different. Tell your prescriber if side effects don't improve or make it hard to eat or drink.

When should I call my doctor about Ozempic side effects?

Call your doctor right away for severe stomach pain that won't go away (with or without vomiting), signs of dehydration such as dizziness or very little urine, vomiting that stops you from keeping fluids down, a lump or swelling in the neck, or trouble swallowing.