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Sources

The research and public health guidance behind GLPantry's scores, flags, meal ideas, and shopping lists.

GLPantry offers general nutrition information, not medical advice. Follow your healthcare provider's guidance about your diet and medications.

What we recommend, and why

Protein first

Eating less on a GLP-1 medication makes each meal's protein matter more. GLP-1 fit scores reward protein per calorie and total protein per serving.

Sources: The American Journal of Clinical Nutrition, MedlinePlus Medical Encyclopedia

Small, gentle meals (Queasy day)

Nausea and vomiting are listed side effects of GLP-1 medications. For slowed stomach emptying, guidance favors low-fat foods, smaller and more frequent meals, soft foods, and low-fat broths. The Queasy day goal and kit favor low-fat, low-sugar, smaller servings, soups, and sippable foods.

Sources: MedlinePlus, MedlinePlus, National Institute of Diabetes and Digestive and Kidney Diseases (NIH)

Fiber and fluids (Stay regular)

Constipation is a listed side effect. Adults should get 22 to 34 grams of fiber a day with plenty of fluids. The Stay regular goal and fiber flags favor fiber-rich foods.

Sources: MedlinePlus, National Institute of Diabetes and Digestive and Kidney Diseases (NIH), The American Journal of Clinical Nutrition

Lower added sugar and fat

Scores reduce points for high sugar and high fat per serving, in line with nutrient-dense eating guidance and the low-fat guidance for slowed digestion.

Sources: The American Journal of Clinical Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases (NIH)

Sugar alcohol warnings

Sugar alcohols such as sorbitol, mannitol, and xylitol are common in sugar-free foods and may cause stomach cramps and diarrhea. Products listing them are flagged.

Sources: MedlinePlus Medical Encyclopedia

Appetite and meal reminders

Decreased appetite is a listed effect of GLP-1 medications. Optional reminders prompt small, protein-first meals.

Sources: MedlinePlus, The American Journal of Clinical Nutrition

Nutrition values

Per-serving values come from product labels as reported to Open Food Facts, and from USDA FoodData Central for fresh foods. Labels change, so check the package.

Sources: U.S. Food and Drug Administration, Open Food Facts (open database of product labels), U.S. Department of Agriculture

References

  1. Nutritional priorities to support GLP-1 therapy for obesity: a joint Advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity SocietyThe American Journal of Clinical Nutrition, 2025Prioritizing protein and nutrient-dense foods, getting enough fiber and fluids, and managing gastrointestinal side effects while eating less on a GLP-1 medication.
  2. Semaglutide InjectionMedlinePlus, U.S. National Library of MedicineNausea, vomiting, diarrhea, and constipation are listed side effects.
  3. Tirzepatide InjectionMedlinePlus, U.S. National Library of MedicineDecreased appetite, nausea, and constipation are listed side effects.
  4. Eating, Diet, & Nutrition for GastroparesisNational Institute of Diabetes and Digestive and Kidney Diseases (NIH)For slowed stomach emptying: low-fat foods, five or six small meals instead of two or three large ones, soft well-cooked foods, and low-fat broths and clear soups.
  5. Eating, Diet, & Nutrition for ConstipationNational Institute of Diabetes and Digestive and Kidney Diseases (NIH)Adults should get 22 to 34 grams of fiber a day, with plenty of fluids to help the fiber work.
  6. Sweeteners - sugarsMedlinePlus Medical Encyclopedia, U.S. National Library of MedicineSugar alcohols such as sorbitol, mannitol, and xylitol are used in sugar-free foods and may cause stomach cramps and diarrhea.
  7. Protein in dietMedlinePlus Medical Encyclopedia, U.S. National Library of MedicineWhat dietary protein does and common protein-rich foods.
  8. How to Understand and Use the Nutrition Facts LabelU.S. Food and Drug AdministrationHow the per-serving protein, fiber, sugar, fat, and calorie values we score are reported.
  9. FoodData CentralU.S. Department of AgricultureNutrition values for fresh produce and other unpackaged foods in the catalog.
  10. Open Food FactsOpen Food Facts (open database of product labels)Nutrition values and ingredient lists for packaged products and scanned barcodes.