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Calories in protein

Calories in Beans

Cooked beans contain 130-150 kcal and 8-9g of protein per 100g, with 7-9g of fiber. Per cup cooked (~170g), 220-250 kcal with 15g protein.

Nutrition by portion size

Portion kcal Carbs (g) Protein (g) Fat (g) Fiber (g)
1 cup cooked black beans (~172g) 227 41 15 0.9 15
1 cup cooked kidney beans (~177g) 220 40 15 0.5 13
1 cup cooked pinto beans (~171g) 245 45 15 1.1 15
100g cooked beans (avg) 132 24 9 0.5 9
1 cup canned beans, drained 230 42 15 1 14
Glycemic index
30
Low (≤55) — slower glucose response

About these numbers

Beans (black, kidney, pinto, navy, white) provide excellent nutrition: 15g protein per cup, 13-15g fiber, low GI (~30), and meaningful folate, iron, and potassium. The 2014 Sievenpiper systematic review on legumes showed 1 cup per day reduced LDL cholesterol 5% and fasting glucose by similar margin.

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Frequently asked questions

How many calories in beans?
1 cup of cooked beans: 220-250 kcal depending on type. Black beans: 227 kcal. Kidney beans: 220. Pinto: 245. Per 100g cooked: ~132 kcal across types.
Are beans good for weight loss?
Excellent. Very low GI, high fiber, high protein produce strong satiety per calorie. The 2009 Mollard study showed 1 cup of pulses reduced subsequent calorie intake by 100+ kcal. For volumetric eating during cuts, beans are top choices.
Beans vs lentils?
Similar nutrition. Beans: 8-9g protein, 13-15g fiber per cup. Lentils: 18g protein, 16g fiber per cup. Lentils are slightly higher in both protein and fiber per equivalent serving. Cooking time: lentils 15-20 min (no soak); beans need overnight soak + 60-90 min simmer. For weeknight cooking, lentils win on convenience.
Beans for diabetes?
Outstanding. GI ~30 (very low), GL per cup ~7 (low). Fiber + protein content blunt glucose response substantially. The 2012 Jenkins et al. trial showed beans in diabetic diets reduced HbA1c by 0.5%.
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