How Much Protein Is in a Banana

Robin Raven

According to the USDA, there are approximately 1.3 grams of protein in one medium-sized banana, and the amount varies for smaller and larger bananas. When you consider some of the other nutritional info about this fruit, it's easy to see why it's a good food choice for many people.

Banana Sizes and Protein Content

The USDA categorizes bananas by standard sizes, and the following chart shows the average protein content for each size.

Protein Content of Bananas
Extra small 5 inches long or less 0.88 grams
Small 5 - 7 inches long 1.10 grams
Medium 7 - 8 inches long 1.3 grams
Large 8 - 9 inches long 1.48 grams
Extra large 9 inches or longer 1.66 grams

Additionally, the USDA states there are 2.45 grams of protein in a cup of mashed bananas and 1.64 grams of protein in a cup of sliced bananas.

Other Nutritional Info

One medium-sized banana contains about 105 calories and has approximately:

  • Fat: 0 grams
  • Cholesterol: 0 grams
  • Sodium: 1 milligram
  • Total carbohydrates: 27 grams
  • Dietary fiber: 3 grams
  • Sugar: 14.43 grams

Bananas also contain vitamins and minerals, including:

  • Vitamin A: 2% of the daily allowance
  • Calcium: 1% of the daily allowance
  • Iron: 2% of the daily allowance

Next Time, Snack on a Banana

The next time you need a quick snack, grab a banana. It's a delicious, healthy snack which vegetarians, vegans, raw food diet followers, and even omnivores can enjoy.

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How Much Protein Is in a Banana