631 kcal P 24g C 22.7g F 49.4g
🍎 Fruits and Fruit Juices
Calories in Bananas, ripe and slightly ripe
The fruit so naturally radioactive, scientists named a unit after it
97 kcal
What makes bananas so powerful?
Bananas contain enough naturally occurring potassium-40 that scientists half-jokingly coined the "Banana Equivalent Dose" to explain tiny radiation exposures to the public — eating one exposes you to roughly 0.1 microsieverts, completely harmless. Bananas are also botanically berries, and the plant itself isn't a tree at all but the world's largest herb. Almost every banana sold commercially today is a single cloned variety, the Cavendish, propagated from cuttings rather than grown from seed — which is exactly why a fungus now threatening Cavendish crops echoes the 1950s collapse of the previous dominant variety, the Gros Michel.
The "Banana Equivalent Dose"
A running science joke used to explain tiny, harmless radiation exposure, since bananas are naturally and safely slightly radioactive.
Not a tree, and a berry
The banana plant is technically the world's largest herb, and the fruit itself is classified as a berry.
One clone, worldwide
Nearly every banana sold today is the same Cavendish variety, propagated from cuttings, not seeds.
💡 When & how to use it
Riper, more spotted bananas have more easily digestible sugar, while greener ones carry more gut-friendly resistant starch but less sweetness. Freeze peeled, overripe bananas for smoothies — freezing doesn't meaningfully reduce nutrients. Pair with peanut butter or yogurt to slow sugar absorption with protein and fat.
Calories by Serving Size
100g
97 kcal
P 0.74g C 23g F 0.29g
1 Banana (115g)
112 kcal
P 0.9g C 26.5g F 0.3g
200g
194 kcal
P 1.5g C 46g F 0.6g
50g
49 kcal
P 0.4g C 11.5g F 0.1g
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
Nutrition Facts
Serving size: 100g
Calories 97
% Daily Value*
Total Fat 0.29g 0%
Sodium 0mg 0%
Total Carbohydrate 23g 8%
Dietary Fiber 1.7g 6%
Protein 0.74g 1%
Vitamin C 12.3mg 14%
Calcium 5mg 0%
Iron 0mg 0%
Potassium 326mg 7%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
How does Bananas fit your daily goals?
19 min
Walking to burn 97 kcal
5%
of 2,000 kcal daily goal
0.74g
protein (1% of daily 50g)
21
servings until 2,000 kcal
Log Bananas in CalRay — just snap a photo
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Frequently Asked Questions
How many calories are in Bananas, ripe and slightly ripe?
Bananas, ripe and slightly ripe contains 97 calories per 100g. A standard serving of 1 Banana (115g) provides 112 calories. It is a moderate-calorie food that can fit into most healthy diets.
How much protein does Bananas, ripe and slightly ripe have?
Bananas, ripe and slightly ripe provides 0.74g of protein per 100g, which is 1% of the 50g daily recommended value. It is not a primary protein source.
How many carbs are in Bananas, ripe and slightly ripe?
Bananas, ripe and slightly ripe contains 23g of carbohydrates per 100g . It also provides 1.7g of dietary fiber.
Is Bananas, ripe and slightly ripe good for weight loss?
Bananas, ripe and slightly ripe has 97 kcal per 100g, which is relatively moderate. It can fit into a weight-loss diet as long as portion sizes are managed.
How do I track Bananas, ripe and slightly ripe calories accurately?
The easiest way to track bananas is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.
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