Food & protein

A high-protein, high-fibre day

Pending medical review

By Joshua Nichvolodoff · Fact-checked against sources November 2, 2026 · Next review due November 2, 2027

Clinical review: not yet reviewed by a clinician. How review works · Editorial policy

What does a day with enough protein and fibre look like when your appetite is small? Here is one example built from published food data, with the guidance behind it. It is an illustration, not a meal plan for you.

The targets, and where they come from

Protein: the recommended dietary allowance is 0.8 g per kg of body weight a day. The joint advisory notes that 1.2–1.6 g/kg has been proposed during active weight reduction, and offers 80–120 g a day as a simpler absolute target[1]. Use the protein calculator to see the ranges for your own numbers.

Fibre: Health Canada's Adequate Intakes are 25 g a day for women and 38 g for men aged 19–50, and 21 g and 30 g from age 51[2]. The advisory itself gives no gram target for fibre or fluids[1].

One example day

Example day: protein per item[3][4][5][6][7][8]
ItemServingProtein
Breakfast: plain nonfat Greek yogurt1 container (170 g)17.3 g
Lunch: boiled lentils1 cup (198 g)17.9 g
Snack: hard-boiled egg1 large (50 g)6.3 g
Dinner: roasted chicken breast½ breast (86 g)26.7 g
With dinner: 2% milk1 cup (245 g)8.2 g
Evening: edamame1 cup (155 g)18.4 g
Total: about 95 g of protein. Values from USDA FoodData Central; your brands will differ.

Lentils and edamame bring fibre along with protein. If whole servings are too much, split them — smaller, more frequent meals may help when hunger is low, and eating protein first makes it more likely you get enough[1].

Adding fibre without upsetting your stomach

For constipation, the advisory encourages enough fluids and fibre from foods, increasing soluble and insoluble fibre gradually — prunes are its example — and possibly fibre supplements[1]. The US Dietary Guidelines 2025–2030 advise prioritising fibre-rich whole grains[9].

When these targets don't apply

With chronic kidney disease, kidney nutrition experts suggest less protein — 0.6–0.8 g/kg a day[10]. If you have kidney disease, are pregnant, or follow a medical diet, set targets with your clinician or a registered dietitian.

General information, not medical or nutrition advice. See also protein on a GLP-1 and small high-protein meals.

Sources

  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 Society. American Journal of Lifestyle Medicine, May 30, 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC12125019/ · DOI 10.1177/15598276251344827 · PMID 40452753. Accessed November 2, 2026. Back to the text
  2. Dietary reference intakes tables: reference values for macronutrients. Health Canada, November 19, 2025. https://www.canada.ca/en/health-canada/services/food-nutrition/healthy-eating/dietary-reference-intakes/tables/reference-values-macronutrients-dietary-reference-intakes-tables-2005.html. Accessed November 2, 2026. Back to the text
  3. FoodData Central FDC ID 170894: Yogurt, Greek, plain, nonfat (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/170894. Accessed November 2, 2026. Back to the text
  4. FoodData Central FDC ID 172421: Lentils, mature seeds, cooked, boiled, without salt (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/172421. Accessed November 2, 2026. Back to the text
  5. FoodData Central FDC ID 173424: Egg, whole, cooked, hard-boiled (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/173424. Accessed November 2, 2026. Back to the text
  6. FoodData Central FDC ID 171477: Chicken, broilers or fryers, breast, meat only, cooked, roasted (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/171477. Accessed November 2, 2026. Back to the text
  7. FoodData Central FDC ID 746778: Milk, reduced fat, fluid, 2% milkfat, with added vitamin A and vitamin D (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/746778. Accessed November 2, 2026. Back to the text
  8. FoodData Central FDC ID 168411: Edamame, frozen, prepared (data record). USDA Agricultural Research Service. https://fdc.nal.usda.gov/portal-data/external/168411. Accessed November 2, 2026. Back to the text
  9. Dietary Guidelines for Americans, 2025–2030. U.S. Department of Agriculture and Department of Health and Human Services, January 2026. https://cdn.realfood.gov/DGA.pdf. Accessed November 2, 2026. Back to the text
  10. The International Society of Renal Nutrition and Metabolism commentary on the NKF and AND KDOQI clinical practice guideline for nutrition in chronic kidney disease. Journal of Renal Nutrition, 2020. https://pmc.ncbi.nlm.nih.gov/articles/PMC8045140 · DOI 10.1053/j.jrn.2020.05.002 · PMID 32737016. Accessed November 2, 2026. Back to the text

Figures marked “as reported” are historical: they show what the source said on that date, not today's price or rule.

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Substantive corrections are also logged at corrections.

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