The amount of protein you get from a banana depends on how large the banana is. A medium-sized banana, which is about 7-8 inches long, provides 1.29 grams of protein.
Similar to most other fruits, bananas are not considered protein-rich foods.
The recommended amount of protein to consume per day, known as the Daily Value, is about 50 grams. The biggest bananas—those that are 9 inches or longer—provide 1.66 grams of protein. Most bananas have 1.29 grams of protein, though.
This means that the average-sized banana provides about 2.6% of your Daily Value of protein.
Although eating bananas may contribute to your protein intake, the amount they contribute is not significant enough for them to be considered a great source of protein.
Fruits—compared to foods like meat, legumes, nuts, eggs, and dairy—are not primary sources of protein. Still, some other fruits contain slightly more protein than bananas.
While 100 grams of a banana contain about 1.1 grams of protein, below is the protein content per 100 grams of other fruits:
- Guava: 2.55 grams of protein
- Passion fruit: 2.2 grams of protein
- Avocado: 2 grams of protein
- Jackfruit: 1.72 grams of protein
- Pomegranate: 1.67 grams of protein
- Apricot: 1.4 grams of protein
- Blackberry: 1.39 grams of protein
Besides carbohydrates and protein, bananas have many micronutrients. The nutritional content of a medium-sized banana is:
- Calories: 105
- Potassium: 422 milligrams, around 10% of the Daily Value
- Calcium: 5.9 milligrams
- Magnesium: 31.9 milligrams
- Phosphorus: 26 milligrams
- Dietary fiber: 3.07 grams, around 10% of the Daily Value
- Manganese: 0.32 milligrams, around 15% of the Daily Value
- Vitamin C: 10.3 milligrams, around 12% of the Daily Value
- Vitamin B6: .43 milligrams, around 25% of the Daily Value
- Folate: 23.6 micrograms
- Sugars: 14.4 grams
- Sodium: 1.18 milligrams
