Banana Nutrition Facts: Calories, Macros & Health Benefits

Summary: One medium banana (118g) of banana contains 105 calories, 1.3g protein, 26.9g carbs, and 0.3g fat. Banana is a good source of vitamin c, vitamin b6.

How Many Calories Are in Banana?

One medium banana (118g) of banana contains 105 calories. Here’s the complete nutrition breakdown:

Banana Nutrition Facts

Is Banana Good for You?

Yes, bananas are nutritious and beneficial for most diets. One medium banana provides 3.1g of fiber for digestive health, 422.4mg of potassium for heart function, and 0.43mg of vitamin B6—meeting 25% of your daily needs. With only 105 calories and zero cholesterol, bananas are a naturally nutrient-dense, whole-food choice.

Key Health Benefits of Banana

• Rich in potassium for heart health: One medium banana contains 422.4mg of potassium (9% DV), a mineral essential for regulating blood pressure and supporting cardiovascular function.

• High in fiber for digestive health: With 3.1g of fiber per banana (11% DV), bananas support healthy digestion, promote beneficial gut bacteria, and help maintain steady blood sugar levels.

• Excellent source of vitamin B6: Providing 0.43mg of B6 (25% DV), bananas support brain function, mood regulation, and the production of neurotransmitters and proteins.

• Natural anti-inflammatory properties: Bananas contain vitamin C (10.3mg, 11% DV) and magnesium (31.9mg, 8% DV), both antioxidant and anti-inflammatory compounds that may help reduce chronic disease risk.

• Low in fat and cholesterol-free: With only 0.35g total fat and 0mg cholesterol, bananas fit cleanly into heart-healthy and plant-based diets without added saturated fat.

Banana vs Apple

Both bananas and apples are nutrient-dense fruits, but they differ in macronutrient composition. Bananas are higher in carbohydrates and potassium, making them ideal for sustained energy, while apples are slightly lower in calories and higher in fiber per gram. Bananas contain more B vitamins, whereas apples are richer in vitamin C. Choose based on your specific nutritional priorities: bananas for potassium and B6, apples for fiber and vitamin C.

Frequently Asked Questions

How many calories are in a banana?

A medium banana (118g) contains 105 calories, making it a low-calorie snack suitable for most dietary goals.

Is banana good for weight loss?

Yes, bananas can support weight loss efforts. They’re low in calories (105 per medium banana), high in fiber (3.1g), and contain resistant starch that promotes satiety and stable blood sugar levels.

Does banana have a high glycemic index?

Bananas have a moderate glycemic index of 51, meaning they raise blood sugar gradually rather than rapidly. The fiber content helps slow glucose absorption, making them suitable for balanced diets.

Can vegans eat bananas?

Yes, bananas are completely vegan. They contain no animal products and are naturally plant-based, making them a staple fruit in vegan nutrition.

What vitamin is banana highest in?

Banana is highest in vitamin B6, providing 0.43mg per medium fruit—25% of your daily recommended intake. B6 is essential for brain development, immune function, and energy metabolism.

How to Track Banana Nutrition with Gram

Gram’s AI food recognition makes it easy to log a banana and instantly see its complete nutrient breakdown, including potassium, fiber, and vitamin B6. Simply photograph your banana or search the database to track macros and micronutrients throughout the day. This precision helps you understand how bananas fit into your personal nutrition goals and supports informed dietary decisions.

Nutrition data sourced from USDA FoodData Central. Track banana and thousands of other foods with the Gram app.