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

How healthy are black beans?

Are black beans healthy? Yes, for most people. Black beans score 69/100 on the HowHealthyIs Score: 100 g provide 132 kcal, 8.7 g fiber and 8.9 g protein. They are one of the highest-fiber foods per portion and a good source of plant protein and magnesium. Source: USDA FoodData Central.

  • High in fiber
  • High in protein
  • Low sugar
Score explained

The score compares nutrient density per 100 kcal across every food we cover (NRF9.3 method). Black beans rank higher than 69% of them.

Counts in favor (% daily value per 100 kcal)

  • Fiber24%
  • Protein13%
  • Magnesium13%
  • Iron9%
  • Potassium6%
  • Vitamin E4%
  • Calcium2%
  • Vitamin A0%
  • Vitamin C0%

Counts against

  • Saturated fat1%
  • Added sugars0%
  • Sodium0%

Raw NRF9.3: 70 minus 1 = 70. 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 black beans?

Calories227kcal
Protein15g
Carbohydrates41g
Fat0.9g
Fiber15g
Sugars0.6g
Nutrition facts for black beans. Per 100 g and for the selected portion (172 g). %DV uses FDA Daily Values.
NutrientPer 100 gPer portion%DV
Energy and macronutrients
Calories132 kcal227 kcal
Protein8.9 g15 g30%
Carbohydrates24 g41 g15%
Fiber8.7 g15 g53%
Sugars0.3 g0.6 g
Added sugars0 g0 g0%
Fat0.5 g0.9 g1%
Saturated fat0.1 g0.2 g1%
Vitamins
Vitamin A0 µg0 µg0%
Vitamin C0 mg0 mg0%
Vitamin E0.9 mg1.5 mg10%
Minerals
Calcium27 mg46 mg4%
Iron2.1 mg3.6 mg20%
Potassium355 mg611 mg13%
Magnesium70 mg120 mg29%
Sodium1 mg1.7 mg0%

Source: USDA FoodData Central, "Beans, black, mature seeds, cooked, boiled, without salt" (FDC 173735). Values rounded.

Why are black beans good for you?

  • 15 g fiber in 1 cup cooked, 53% of the daily value. Most adults eat well under the 28 g daily value for fiber.
  • 15 g protein in 1 cup cooked, 30% of the daily value. Protein contributes to the maintenance of muscle mass.
  • 120 mg magnesium in 1 cup cooked, 29% of the daily value. Magnesium contributes to normal muscle function.

Good ways to use them

  • Tacos, burritos and bowls
  • Soups and veggie burgers

What should you watch out for?

  • Canned beans can be salty; rinse them or buy no-salt-added.

Similar foods

Black beans are already one of the most nutrient-dense legumes we cover.

How do black beans compare?

Common questions about black beans

How many calories are in black beans?
100 g of black beans has 132 kcal. A typical portion, 1 cup cooked (172 g), has about 227 kcal.
How much protein is in black beans?
Black beans have 8.9 g of protein per 100 g, or about 15 g in 1 cup cooked.
Are black beans good for weight loss?
Black beans are fairly calorie-dense (132 kcal per 100 g), so portion size matters more than the food itself. 1 cup cooked is about 227 kcal.

Sources

  1. U.S. Department of Agriculture. FoodData Central, SR Legacy: "Beans, black, mature seeds, cooked, boiled, without salt", FDC ID 173735. 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: Legumes ranked, foods high in fiber.