Banana — 89 kcal

There is a reason bananas outsell every other fruit on the planet. At 89 kcal per 100 g, a medium banana delivers 22.8 g of carbohydrates and 1.1 g of protein wrapped in a natural, peel-and-go package that needs no washing, no cutting, and no refrigeration. The 12.2 g of sugar rides alongside 2.6 g of fiber, creating a glycemic curve gentle enough for diabetics yet powerful enough to fuel a five-mile run. Only 0.3 g of fat keeps the calorie math friendly, while 74.9 g of water per 100 g makes bananas more hydrating than most people realize.

What's Inside

Potassium steals the spotlight at 358 mg per 100 g, roughly 10 % of the daily value, regulating fluid balance across every cell membrane and keeping your heartbeat steady under stress. Vitamin B6 delivers 0.367 mg — about 22 % DV — driving over a hundred enzyme reactions from serotonin synthesis (your mood molecule) to hemoglobin production. Vitamin C at 8.7 mg (roughly 10 % DV) supports collagen repair and iron absorption. Magnesium (27 mg) relaxes smooth muscle tissue and helps convert food into ATP, while manganese (0.27 mg) activates superoxide dismutase, your body's first-line antioxidant enzyme. Copper (0.078 mg) completes the mineral picture, assisting in red blood cell formation. As a banana ripens and brown speckles appear, resistant starch converts to simple sugars — greener bananas feed gut bacteria as a prebiotic, while spotted ones deliver faster energy.

Getting It Right

Freeze ripe banana slices on a parchment-lined tray for two hours, then blend them solo into a one-ingredient soft-serve that rivals gelato in texture. For the best pre-workout fuel, eat a medium banana 20 to 30 minutes before training — the quick-release sugars peak right when you need them. Mash overripe bananas into pancake batter or banana bread; their extra sweetness lets you cut added sugar by half. Pair with peanut butter for a complete amino acid profile, or slice onto overnight oats with a pinch of cinnamon and a drizzle of honey. Store at room temperature — refrigeration darkens the peel but actually slows internal ripening, a useful trick when you have bought too many.