How much potassium is in a banana?

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How much potassium is in a banana?
Potassium powerhouse (banana image by Edvin selimovic from

One banana packs a potassium punch of at least 450 milligrams. At more than 20 per cent of your necessary daily value, that's a lot of the vital mineral. But the banana's reputation as a potassium powerhouse is a bit overblown. Many other common foods--such as beans, potatoes and halibut--contain much more potassium. Of course, that doesn't mean bananas aren't generally healthy. In fact, they're one of the healthiest fruits around.

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Tips and warnings

  • Bananas are a great junk-food substitute for people who have constant sugar cravings.
  • Bananas are a natural antacid, so heartburn sufferers should consider them for dessert.

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