Foods to avoid on Ozempic, Wegovy, Zepbound or Mounjaro, and why

Short answer: no food is officially banned. The Zepbound, Mounjaro, Ozempic and Wegovy injection labels all say the dose can be taken with or without meals.^[1][2][3][4] What the labels do say is that these medications delay gastric emptying, so food stays in the stomach longer. The foods that tend to sit badly are the ones that make that worse: large portions, fried and greasy food, very rich meals, and alcohol. A 2025 joint advisory from four US medical and nutrition societies also lists sugary drinks, refined grains, red and processed meats and most fast food as things to minimize.^[5]

This page is the "what to go easy on" half of the picture, and it sits under our guide to what to eat when you're eating less. The "what to eat" half is in what to eat on Zepbound and what to eat on Wegovy, and the drug-neutral version is what to eat on a GLP-1. If your stomach is already unsettled today, go straight to what to eat on queasy days.

Is there an official list of foods to avoid on a GLP-1?

No. None of the four prescribing labels lists a food that must be avoided, and none names a food that interacts with the medication.^[1][2][3][4] Zepbound and Mounjaro are the same drug, tirzepatide; Ozempic and Wegovy are both semaglutide. The one food-timing rule in these labels belongs to the Wegovy tablet: it is taken on an empty stomach in the morning with up to 4 ounces of water, and you then wait at least 30 minutes before eating, drinking or taking other oral medicines.^[4] The weekly injections have no such rule.

The "foods to avoid" lists you see online come from three places, and this article sticks to them:

• The prescribing labels, for how the medication works: it delays gastric emptying.^[1][4]
• The 2025 joint advisory on nutrition with GLP-1 therapy, whose Table 6 sorts foods and habits into "encourage" and "minimize/avoid".^[5]
• The manufacturers' own patient pages, which give short practical tips for an unsettled stomach.^[6][7]

Why do some foods sit badly on Ozempic, Wegovy or Zepbound?

Because the stomach empties more slowly. Each label states that the medication delays gastric emptying, which is also why the labels ask you to tell your healthcare providers before any planned surgery or procedure under anesthesia or deep sedation.^[1][4] The advisory links that slower emptying to bloating, fullness and nausea, and notes that stomach symptoms are most likely when starting the medication or moving up a dose.^[5]

Food itself changes the pace too. The advisory explains that foods high in fat or protein slow gastric emptying further, while foods that flow easily, have fewer calories and hold more water, such as many fruits and vegetables, leave the stomach faster.^[5] Put a slow stomach and a large, fatty meal together and the meal simply stays put for longer. That is the whole logic behind most of the list below.

Protein is the exception worth keeping. It slows emptying, but the advisory still treats it as the priority on these medications; the answer is smaller, lower-volume portions of it, not less of it.^[5] How much is in how much protein to eat on a GLP-1.

Which foods should you avoid or limit on a GLP-1?

Go easy on	Why, and who says so	Choose instead
Large meals and second helpings	The advisory notes vomiting is more likely after large meals and lists them under "minimize";[5] Lilly's tips say split three meals into four or more and stop when you feel full[6]	A small plate every three to four hours
Fried, greasy and high-fat food: fries, fried chicken, creamy sauces, dishes heavy with butter or cheese	Fat slows emptying further;[5] Lilly's tips say avoid fatty foods like butter or cheese, and Novo's Wegovy page lists greasy foods under things you may want to avoid[6][7]	Grilled, baked or poached fish, chicken and eggs, with a little olive or canola oil
Very rich or very spicy dishes	Novo's page suggests asking your healthcare professional whether to avoid fatty, greasy or spicy foods[7]	Plainer seasoning on harder days; bring spice back when it sits well
Sugary drinks, sweets and refined grains	On the advisory's minimize list, alongside added sugars and refined flours;[5] with less room on the plate, they crowd out protein and fiber	Fruit, plain yogurt, oats and whole-grain bread
Red and processed meats, most fast food, savory snacks	On the advisory's minimize list, for their links to general health[5]	Fish, poultry, eggs, beans, lentils, nuts and seeds
Alcohol	The advisory says alcohol may worsen nausea and reflux on GLP-1 therapy and should be minimized[5]	Water, tea, milk, broth
High-fiber foods in the first few days of treatment	The advisory suggests avoiding fatty or high-fiber foods during the first few days of treatment, then increasing fiber gradually[5]	Lower-fiber choices for a few days, then beans, oats and vegetables again

Built from Table 6 and the section on stomach symptoms in the advisory, and from the manufacturers' patient pages.^[5][6][7] Fiber is a "for now", not a "never": it matters for staying regular, and how to rebuild it is in how much fiber a day on a GLP-1.

What about fizzy drinks and soda?

Carbonated drinks are not on the labels, the advisory's table or either manufacturer's tip list, so treat any article that "bans" them with care. Two things are documented. Sugar-sweetened drinks are on the advisory's minimize list whether they are fizzy or not.^[5] And belching and a bloated belly are recorded in the trials: in the advisory's summary, belching was reported by 7% of people on semaglutide 2.4 mg (under 1% on placebo) and 5% on tirzepatide 15 mg (1% on placebo).^[5] Fizz adds gas and volume to a stomach that is already emptying slowly, so if you notice bloating or belching, a flat drink is the obvious thing to try first. If sparkling water sits fine with you, nothing official says to stop.

What does matter is getting enough fluid. The Zepbound label advises taking precautions to avoid fluid depletion, because fluid lost through vomiting or diarrhea can lead to dehydration and kidney injury.^[1] Sip between bites rather than drinking a large glass with a meal, and count tea, milk, broth and soup. More options are in what to drink on a GLP-1 besides water.

Which eating habits matter as much as the food?

• Eating fast. Novo's Wegovy page suggests intentionally eating more slowly.^[7] Fullness arrives later than the last bite; slow eating gives you time to notice it.
• Eating past full. Lilly's tips say to stop eating when you feel full.^[6] Finishing the plate is not the goal.
• Lying down after a meal. Listed by Novo under things you may want to avoid.^[7] Stay upright for a while after eating.
• Late-night eating. The advisory lists nighttime eating among the habits to minimize.^[5] A big meal shortly before bed combines a full stomach with lying down.
• Long gaps without food. Also on the advisory's minimize list. It notes that an unsettled stomach often shows up in the morning or after a long stretch without eating, and suggests a small breakfast, then small meals every three to four hours.^[5]

What should you eat instead?

The swap column in the table is the short version: smaller portions, lean protein first, and plain cooking. Both manufacturers point to bland, low-fat foods such as toast, crackers and rice for harder days, and Novo adds foods that contain water, such as soups.^[6][7] For everyday meals the advisory recommends lower-volume, nutrient-dense protein foods such as fish, eggs, Greek yogurt, cottage cheese, and nuts and seeds, with fruit, vegetables, whole grains, beans and dairy around them.^[5] Protein per small portion is listed in our protein in small portions table, and a full day of eating is laid out in what to eat on Zepbound.

For transparency about our own product: Zornava Replenish is a lemon-lime drink mix with electrolytes, vitamins and a prebiotic fiber, made for lighter appetite days. It is a drink, not a meal, and it is not a substitute for any of the food above.

Do you have to avoid these foods forever?

No. The advisory's own "encourage" column includes flexibility with food choices and enjoying portion-controlled treats.^[5] Where it suggests limiting fatty or high-fiber food to manage symptoms, it describes that as temporary.^[5] Many people also find their tastes shift on these medications: the advisory reports clinicians seeing less craving for high-fat foods, sugary foods and alcohol.^[5] A slice of pizza at a normal portion is a different thing from a large fried meal on the day after a dose increase. Notice which foods sit badly for you, and when, rather than following someone else's list.

When should you call your prescriber?

• You cannot keep fluids down, or you have very little or very dark urine.
• Severe or lasting pain in the abdomen, especially if it spreads to the back. The labels list this as a warning sign of pancreatitis.^[4][1]
• Vomiting that keeps coming back, or you have eaten very little for several days.
• You have surgery or a procedure with sedation coming up: tell the team you take a GLP-1 medication, as the labels instruct.^[1][4]

Your prescriber can review the dose and the pace of increases, and refer you to a registered dietitian who can fit all of this to the foods you actually like.

Not sure which part of your intake is slipping on lighter days? Our two-minute quiz sorts it into water, protein, fiber and vitamins.