Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Gut Health

Gut health starts with fiber diversity, sensible fermented foods and patterns that support microbial balance.

Key compounds

The evidence base for this goal focuses on several well-studied compounds.

  • Resistant Starch — Resistant starch is the maverick of the carbohydrate world: a starch that slips past digestion in the small intestine and arrives, intact, in the colon where

Best foods for this goal

The foods below are good practical choices.

Greek Yogurt (plain, nonfat)

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 61
Total Fat 0.37 g
Saturated Fat 0.11 g
Sodium 36 mg
Potassium 141 mg
Total Carbohydrate 3.64 g
Dietary Fiber 0 g
Total Sugars 3.2 g
Protein 10.3 g
Calcium, vitamin B12, probiotics, iodine
Glycemic index: 11
Source: USDA FoodData Central (FDC 330137)

Oats

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 379
Total Fat 6.52 g
Saturated Fat 1.11 g
Sodium 6 mg
Potassium 362 mg
Total Carbohydrate 67.7 g
Dietary Fiber 10.1 g
Total Sugars 0.99 g
Protein 13.15 g
Manganese, phosphorus, magnesium, beta-glucan fibre
Glycemic index: 55
Source: USDA FoodData Central (FDC 173904)

Chickpeas

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 383
Total Fat 6.27 g
Saturated Fat 0.69 g
Sodium 8.78 mg
Potassium 1070 mg
Total Carbohydrate 60.4 g
Dietary Fiber 10.8 g
Total Sugars 10.8 g
Protein 21.3 g
Folate, manganese, iron, plant protein
Glycemic index: 28
Source: USDA FoodData Central (FDC 2644282)

Garlic

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 143
Total Fat 0.38 g
Saturated Fat 0.1 g
Sodium 17 mg
Potassium 401 mg
Total Carbohydrate 28.2 g
Dietary Fiber 2.7 g
Total Sugars 1 g
Protein 6.62 g
Manganese, vitamin B6, vitamin C, allicin
Glycemic index: 30
Source: USDA FoodData Central (FDC 1104647)

Onion

Nutrition Facts
Per 100 g · values per 100 g
Calories 44
Total Fat 0.1 g
Saturated Fat 0.042 g
Sodium 1 mg
Potassium 197 mg
Total Carbohydrate 9.93 g
Dietary Fiber 2.2 g
Total Sugars 4.24 g
Protein 0.94 g
Quercetin, vitamin C, sulphur compounds, prebiotic fibre
Source: USDA FoodData Central (FDC 790577); sugars/sat-fat: FDC 170000

Practical takeaways

Focus on consistency, variety and the overall dietary pattern. Smaller daily choices tend to outperform occasional large changes.

Common questions

Is one compound enough? Rarely. Whole foods and dietary patterns usually outperform single-compound strategies.

How fast can diet change inflammation or blood markers? It depends on the marker, the starting diet and lifestyle factors. Expect gradual trends rather than overnight shifts.

A note on health content. This article is for general information and is not a substitute for professional medical or dietetic advice. Where we cite research, links to the original papers are provided so you can read the evidence yourself.

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