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

How healthy are green beans?

Are green beans healthy? Yes, for most people. Green beans score 87/100 on the HowHealthyIs Score: 100 g provide 31 kcal, 12 mg vitamin C and 2.7 g fiber. Green beans are low in calories with fiber, vitamin C and vitamin K. Source: USDA FoodData Central.

  • Source of vitamin C
  • Low calorie
Score explained

The score compares nutrient density per 100 kcal across every food we cover (NRF9.3 method). Green beans rank higher than 87% of them.

Counts in favor (% daily value per 100 kcal)

  • Vitamin C44%
  • Fiber31%
  • Magnesium19%
  • Iron18%
  • Potassium14%
  • Vitamin A13%
  • Protein12%
  • Calcium9%
  • Vitamin E9%

Counts against

  • Saturated fat1%
  • Added sugars0%
  • Sodium1%

Raw NRF9.3: 169 minus 2 = 168. 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 green beans?

Calories31kcal
Protein1.8g
Carbohydrates7g
Fat0.2g
Fiber2.7g
Sugars3.3g
Nutrition facts for green beans. Per 100 g and for the selected portion (100 g). %DV uses FDA Daily Values.
NutrientPer 100 gPer portion%DV
Energy and macronutrients
Calories31 kcal31 kcal
Protein1.8 g1.8 g4%
Carbohydrates7 g7 g3%
Fiber2.7 g2.7 g10%
Sugars3.3 g3.3 g
Added sugars0 g0 g0%
Fat0.2 g0.2 g0%
Saturated fat<0.1 g<0.1 g0%
Vitamins
Vitamin A35 µg35 µg4%
Vitamin C12 mg12 mg14%
Vitamin E0.4 mg0.4 mg3%
Minerals
Calcium37 mg37 mg3%
Iron1 mg1 mg6%
Potassium211 mg211 mg4%
Magnesium25 mg25 mg6%
Sodium6 mg6 mg0%

Source: USDA FoodData Central, "Beans, snap, green, raw" (FDC 169961). Values rounded.

Why are green beans good for you?

  • 12 mg vitamin C in 1 cup, 14% of the daily value. Vitamin C contributes to the normal function of the immune system.

Good ways to use them

  • Easy weeknight side
  • Stir-fries

What should you watch out for?

  • Canned versions can be salty; rinse or choose no-salt-added.

Which vegetables score higher?

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

How do green beans compare?

Common questions about green beans

How many calories are in green beans?
100 g of green beans has 31 kcal. A typical portion, 1 cup (100 g), has about 31 kcal.
How much protein is in green beans?
Green beans have 1.8 g of protein per 100 g, or about 1.8 g in 1 cup.
Are green beans good for weight loss?
Green beans are low in calories (31 kcal per 100 g), so they add 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: "Beans, snap, green, raw", FDC ID 169961. 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 C.