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how much protein in black beans

Cooked black beans have about 8–9 grams of protein per 100 grams , which works out to roughly 7–8 grams of protein in a ½-cup serving.

Here’s a quick breakdown:

  • 100 g cooked, boiled, unsalted black beans: about 9 g protein.
  • ½ cup cooked (around 86–90 g): about 7–8 g protein.
  • 1 full cup cooked: roughly 15 g protein.

If you see different numbers on labels or online, it’s usually because:

  • Some values are for dry (uncooked) beans (about 21–22 g protein per 100 g dry, which drops once cooked due to water weight).
  • Some are for canned beans, which can vary slightly in protein per 100 g depending on brand and how much liquid is included.

In practical terms: a typical meal-sized scoop of black beans (about 1 cup cooked) gives you around 15 g of protein plus lots of fiber , making them a solid plant-based protein base for bowls, burritos, and salads.

Information gathered from public forums or data available on the internet and portrayed here.