Large potatoes, the iron content scales up roughly with size. Here’s a rough estimate:
Large white potato (~300g): about 2.2 mg of iron
Large sweet potato (~300g): about 1.4 mg of iron
So a big white potato can give you around 12% of your daily iron needs (based on 18 mg/day for adults).
Remember, the exact iron content can vary a bit by variety and growing conditions. Also, eating the skin adds some extra iron and nutrients.
Potatoes are pretty nutrient-rich for a humble tuber! Here’s a breakdown of key nutrients in a medium white potato (~150g) with skin:
Macronutrients:
Calories: ~110
Carbohydrates: ~26 g (mostly starch)
Protein: ~3 g
Fat: < 0.2 g (almost fat-free)
Fiber: ~2 g (mostly from skin)
Vitamins:
Vitamin C: ~17 mg (about 20% of daily value)
Vitamin B6: ~0.3 mg (15% DV)
Folate: small amount (~15 mcg)
Niacin (B3), Thiamin (B1), Riboflavin (B2): trace amounts
Minerals:
Potassium: ~620 mg (about 15% DV) — important for heart and muscle function
Iron: ~1.1 mg (6% DV)
Magnesium: ~30 mg (7% DV)
Phosphorus: ~60 mg (6% DV)
Calcium: ~20 mg (2% DV)
Others:
Antioxidants: such as flavonoids and carotenoids, especially in colored varieties (red, purple potatoes)
Potatoes are especially known for their potassium and vitamin C content, plus they provide energy mainly via carbs. Eating the skin boosts fiber and micronutrient intake.
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