Vegetables

Yam

African root vegetable rich in potassium, manganese, and vitamin C

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Top benefits
  • - Supports digestive regularity
  • - Helps modulate blood glucose response
  • - Supports cardiovascular health
  • - Supports immune defenses
  • - Feeds beneficial gut bacteria (prebiotic potential)
Best use
Food-first guidance: use as a whole food, pair for absorption, watch portion if calorie-dense.
Safety
Always check interactions if pregnant, on medications (e.g., blood thinners), or managing chronic conditions.

Research-backed claims (ranked)

No published claims yet. Add claims in admin and publish them with citations.

Nutrients

Energy118
Carbohydrates27.9
Dietary fiber4.1
Protein1.5
Total fat0.17
Potassium816
Vitamin C17.1
Vitamin B60.29
Manganese0.397
Magnesium21

Active compounds

Polyphenols (phenolic acids and flavonoids)

A range of phenolic compounds with antioxidant activity that contribute to reduction of oxidative stress and may modulate inflammation.

Diosgenin

A steroidal saponin present in fenugreek that is a precursor for steroid synthesis in industrial processes and is associated with lipid-lowering and possible hormone-modulating activities in biological studies.

Dioscorin

The major storage protein in yam tubers with reported antioxidant and free-radical–scavenging properties in experimental studies.

Resistant starch

A form of starch that resists digestion in the small intestine and is fermented in the colon, producing short-chain fatty acids (e.g., butyrate) that nourish colonocytes and benefit metabolic health.

Mucilage and soluble polysaccharides

Water‑soluble polysaccharides that contribute to the tuber’s texture and can have soothing effects on the gastrointestinal mucosa and act as fermentable substrates for gut microbes.

Oxalates (anti‑nutrient, variable)

Yams can contain low-to-moderate levels of oxalate; in susceptible individuals high oxalate intake can bind minerals and contribute to kidney stone risk. Levels vary by species and preparation.

Health benefits

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Supports digestive regularitystrong

Description coming soon.

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Helps modulate blood glucose responsemoderate

Description coming soon.

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Supports cardiovascular healthmoderate

Description coming soon.

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Supports immune defensesmoderate

Source of vitamin C and other micronutrients that contribute to normal immune function and antioxidant protection.

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Feeds beneficial gut bacteria (prebiotic potential)moderate

Contains resistant starch and fermentable polysaccharides that can be fermented by colonic bacteria to produce short-chain fatty acids, supporting gut microbial health and colonic function.

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Provides antioxidant and anti-inflammatory compoundsmoderate

Contains flavonoids and polyphenols (e.g., quercetin and other phenolics) that scavenge free radicals and may reduce low-grade inflammation associated with chronic disease.

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Contributes to bone and connective tissue healthemerging

Provides minerals such as magnesium and manganese that are cofactors for enzymes involved in bone matrix formation and connective tissue maintenance.

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Traditional use for women’s hormonal healthtraditional

Certain wild yam species have been used traditionally for menstrual and menopausal symptoms due to steroidal saponins (e.g., diosgenin); clinical evidence for direct hormone effects from dietary yam is limited, but traditional preparations have a long history of use.

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Supports weight management when substituted for refined starchesmoderate

Relatively low in fat and high in fiber and complex carbohydrates, yams can increase satiety and provide energy with lower caloric density than many processed carbohydrate foods.

Deep dive (easy to read)

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Disclaimer

LifeTiers provides educational wellness and lifestyle information. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice. If symptoms are severe, persistent, or you are pregnant, nursing, taking medications, or have a condition—talk to a clinician. If you think you have an emergency, call local emergency services.