Early version. Nutrient values from USDA FoodData Central; dietitian review in progress. Not medical advice.

How healthy is sweet potato?

Is sweet potato healthy? Yes, for most people. Sweet potato scores 88/100 on the HowHealthyIs Score: 100 g provides 90 kcal, 961 µg vitamin A and 20 mg vitamin C. A medium baked sweet potato covers more than a day's vitamin A and adds fiber and potassium. Source: USDA FoodData Central.

  • High in vitamin A
  • Source of fiber
  • Low fat
Score explained

The score compares nutrient density per 100 kcal across every food we cover (NRF9.3 method). Sweet potato ranks higher than 88% of them.

Counts in favor (% daily value per 100 kcal)

  • Vitamin A100%
  • Vitamin C24%
  • Fiber13%
  • Potassium11%
  • Magnesium7%
  • Vitamin E5%
  • Protein4%
  • Iron4%
  • Calcium3%

Counts against

  • Saturated fat0%
  • Added sugars0%
  • Sodium2%

Raw NRF9.3: 173 minus 2 = 171. The score is not a verdict on whether to eat a food; portion, the whole meal and your own health matter more. Full methodology

How many calories are in sweet potato?

Calories103kcal
Protein2.3g
Carbohydrates24g
Fat0.2g
Fiber3.8g
Sugars7.4g
Nutrition facts for sweet potato. Per 100 g and for the selected portion (114 g). %DV uses FDA Daily Values.
NutrientPer 100 gPer portion%DV
Energy and macronutrients
Calories90 kcal103 kcal
Protein2 g2.3 g5%
Carbohydrates21 g24 g9%
Fiber3.3 g3.8 g13%
Sugars6.5 g7.4 g
Added sugars0 g0 g0%
Fat0.1 g0.2 g0%
Saturated fat<0.1 g<0.1 g0%
Vitamins
Vitamin A961 µg1096 µg122%
Vitamin C20 mg22 mg25%
Vitamin E0.7 mg0.8 mg5%
Minerals
Calcium38 mg43 mg3%
Iron0.7 mg0.8 mg4%
Potassium475 mg542 mg12%
Magnesium27 mg31 mg7%
Sodium36 mg41 mg2%

Source: USDA FoodData Central, "Sweet potato, cooked, baked in skin, flesh, without salt" (FDC 168483). Values rounded.

Why is sweet potato good for you?

  • 1096 µg vitamin A in 1 medium, baked, 122% of the daily value. Vitamin A contributes to the maintenance of normal vision.
  • 22 mg vitamin C in 1 medium, baked, 25% of the daily value. Vitamin C contributes to the normal function of the immune system.
  • 3.8 g fiber in 1 medium, baked, 13% of the daily value. Most adults eat well under the 28 g daily value for fiber.

Good ways to use it

  • A fiber-rich carb side
  • Baked whole as a simple lunch base

What should you watch out for?

  • Candied or marshmallow-topped versions add a lot of added sugar.

Which vegetables score higher?

Other vegetables with more nutrition per calorie. Variety matters more than picking one winner.

How does sweet potato compare?

Common questions about sweet potato

How many calories are in sweet potato?
100 g of sweet potato has 90 kcal. A typical portion, 1 medium, baked (114 g), has about 103 kcal.
How much protein is in sweet potato?
Sweet potato has 2 g of protein per 100 g, or about 2.3 g in 1 medium, baked.
Is sweet potato good for weight loss?
Sweet potato is low in calories (90 kcal per 100 g), so it adds volume to meals without many calories. No single food causes weight loss; the overall diet does.

Sources

  1. U.S. Department of Agriculture. FoodData Central, SR Legacy: "Sweet potato, cooked, baked in skin, flesh, without salt", FDC ID 168483. fdc.nal.usda.gov
  2. U.S. Food and Drug Administration. Daily Value on the Nutrition and Supplement Facts Labels (21 CFR 101.9).
  3. Fulgoni VL, Keast DR, Drewnowski A. Development and validation of the Nutrient-Rich Foods Index. J Nutr. 2009;139(8):1549-1554.
  4. Monteiro CA, et al. Ultra-processed foods: what they are and how to identify them. Public Health Nutr. 2019;22(5):936-941.

Review and updates

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More: Vegetables ranked, foods high in vitamin A.