Fruit · Tropical Fruit

Banana

Health
ScoreB

Bananas are nutrient-dense tropical fruits rich in potassium, fiber, and resistant starch, making them a convenient whole-food source of carbohydrates and micronutrients essential for cardiovascular and metabolic health.

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Why Banana scores 68

Nutrient density16

Protein quality4

Fiber content7

Healthy fats5

Bioactive compounds12

Glycemic impact9

Top nutrients

% Daily Value per 1 medium (140 g)

Vitamin B6 30%Vitamin C 14%Potassium 11%Magnesium 9.0%Folate 6.9%

Nutrition

per_1_banana

135

Calories

1.7g

Protein

34.7g

Carbs

0.5g

Fat

Fiber

Health benefits

Supports cardiovascular health and blood pressure regulation

strong evidence

High potassium content counteracts sodium's effects on blood vessel tension, supporting healthy resting blood pressure and reducing left ventricular hypertrophy risk

Promotes healthy gut microbiota composition

moderate evidence

Resistant starch (especially in green bananas) acts as a prebiotic, selectively feeding beneficial bacteria and increasing butyrate production for intestinal barrier integrity

Supports stable blood glucose levels

moderate evidence

Pectin and resistant starch slow gastric emptying and glucose absorption, reducing postprandial insulin spikes when consumed with protein or fat

Enhances mood and cognitive function

moderate evidence

Vitamin B6 is essential for serotonin and dopamine synthesis; ripe bananas contain trace dopamine; tryptophan content supports endogenous serotonin production

Pairs well with

·Pair with nut butter (almond or peanut) because fat slows carbohydrate absorption and increases satiety, preventing glucose spikes
·Combine with Greek yogurt or cottage cheese because protein synergizes with banana's carbohydrates to stabilize blood sugar and enhance muscle protein synthesis
·Mix with cinnamon because this spice may enhance insulin sensitivity and reduce postprandial glucose responses to the fruit's natural sugars
·Blend with leafy greens (spinach, kale) because fat-soluble vitamins pair well with banana's water-soluble nutrients, creating a balanced micronutrient profile

Practical tips

·Best timing: post-workout
·Choose slightly green-tipped bananas for maximum resistant starch content; fully yellow bananas are higher in antioxidants but lower in prebiotic fiber
·Store at room temperature to allow ripening; refrigerate the peel only (skin darkens but flesh stays firm) once ripe to extend shelf life by 3-5 days
·Consume within 2 hours of exercise for optimal post-workout recovery due to carbohydrate replenishment and potassium replacement via sweat loss
·Slice and freeze overripe bananas for use in smoothie bowls, frozen smoothies, or as a dairy-free ice cream base—freezing preserves polyphenols and increases resistant starch conversion