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Potatoes

Potatoes

Overview​

Potatoes provide complex carbohydrates, potassium, vitamin B6, and vitamin C. Their functional profile changes meaningfully by preparation and variety: cooked-then-cooled potatoes increase resistant starch through retrogradation, while purple potato varieties contribute anthocyanins (including C3G-related compounds) that are relevant to polyphenol-focused dietary patterns.

In practical terms, potatoes can serve both glycaemic stability and polyphenol diversity goals when used intentionally: cooling after cooking supports resistant starch formation and lower post-prandial glycaemic response, and including purple varieties broadens anthocyanin exposure [1][2].

Key Nutritional Highlights​

  • Cooled potatoes provide resistant starch that supports beneficial gut microbiota fermentation [1]
  • Resistant starch fermentation produces short-chain fatty acids relevant to gut–brain signalling [2]
  • Potatoes provide complex carbohydrates, potassium, vitamin B6, and vitamin C. [1]
  • Their functional profile changes meaningfully by preparation and variety: cooked-then-cooled potatoes increase resistant starch through retrogradation, while purple potato varieties contribute anthocyanins (including C3G-related compound… [2]
  • In practical terms, potatoes can serve both glycaemic stability and polyphenol diversity goals when used intentionally: cooling after cooking supports resistant starch formation and lower post-prandial glycaemic response, and including p…

Food Context​

Preparation​

  • Cook, cool, and optionally reheat potatoes to increase resistant starch (retrogradation) while retaining practical meal use.
  • Cooled starch structures are associated with a lower glycaemic response versus freshly cooked hot potato servings.
  • Resistant starch supports gut fermentation patterns linked to butyrate production and broader microbiome resilience.

Variety-Specific Properties​

  • Purple potato varieties provide anthocyanins (including C3G-related compounds), adding a polyphenol dimension beyond standard white/yellow potatoes.
  • Anthocyanin-rich potato inclusion can be used as part of a broader strategy for color-diverse polyphenol intake.

Recipes​

1 recipe containing this food

Saffron Roast Potatoes

Crisp roast potatoes finished with saffron-infused olive oil, designed to maximise colour, flavour and texture while remaining adaptable to many main dishes.

Nutrient Tables (per 100 g)

Core nutrients

NutrientAmount per 100 g% RDA per 100 g
Energy74 kcal—
Protein2 g—
Total fat0 g—
Saturated fat0 g—
Carbohydrates17.6 g—
Fibre1.4 g—

Key micronutrients

NutrientAmount per 100 g% RDA per 100 g
Iron0.7 mg4.1%
Zinc0.2 mg1.8%
Magnesium16 mg3.8%
Calcium14 mg1.4%
Potassium419 mg12.3%
Folate16 µg4%
Vitamin B60.1 mg7.9%
Reference intakes: US Dietary Reference Intakes for adults (19–50 years; using the higher of male/female values where they differ).
Data provenance (core / micronutrient panel): USDA FoodData Central, POTATOES, FDC ID 522090, API, per 100 g edible portion, last checked 2026-03-14

Substances​

Substances in this food: editorial (Overview / literature) plus analytical (nutrition table).

8 substances in this food
K+

Potassium

Electrolyte for nerve transmission, muscle function, and blood pressure regulation

Fe2+

Iron

Oxygen transport; dopamine synthesis (tyrosine hydroxylase cofactor)

Zn2+

Zinc

Cofactor in neurotransmission and antioxidant enzymes; dopamine modulation

Mg2+

Magnesium

Enzymatic cofactor (>300 reactions); neurotransmitters; mitochondria; redox balance

Ca2+

Calcium

Bone health; neurotransmission; interacts with vitamin D and K2

References​

[1] Cooled potatoes provide resistant starch that supports beneficial gut microbiota fermentation. Zhou et al. 2015. The importance of GLP‐1 and PYY in resistant starch's effect on body fat in mice

[2] Resistant starch fermentation produces short-chain fatty acids relevant to gut–brain signalling. Fan et al. 2019. SCFA producing bacteria shape the subtype of ADHD in children