Foods to Avoid on GLP-1 Medications

There's no official "banned foods" list on a GLP-1 medication. A more useful way to think about it: some foods reliably make side effects worse, and others crowd out the protein and nutrients your smaller appetite can no longer afford to waste. Here's what to go easy on — and why.

Foods that commonly worsen side effects

• Fried & greasy foods. GLP-1 medications slow stomach emptying, and high-fat food is already slow to digest, making it a common nausea trigger.
• Very rich, creamy dishes. Same reason — heavy and slow to clear.
• Very sugary foods and drinks. Can worsen nausea and cause blood-sugar swings, with little nutrition in return.
• Alcohol. A common trigger for GLP-1 stomach symptoms, plus empty calories and dehydration.
• Carbonated drinks. The gas adds to bloating when your stomach is already emptying slowly.

Foods that crowd out your nutrition

With a smaller appetite, protein and nutrient density become the priority. These foods aren't "toxic" — they just take up room you can't spare:

• Refined carbs — white bread, crackers, white rice — filling but low in protein and fibre.
• Ultra-processed snacks — typically high in salt, sugar, and fat, low in the protein and fibre you need.
• Sugary drinks and juices — calories without satiety.

Think "crowding out," not "cutting out." Every plate has limited room now — give the space to protein and vegetables first.

What to reach for instead

Lead with protein, add fibre-rich vegetables, and keep portions small. See our guide to high-protein foods and browse the recipes for easy, gentle options.

This is general nutrition information, not medical advice. If a food consistently upsets you, or symptoms are severe, talk to your doctor or dietitian.