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He also said, “In trail running races, salt bananas had become widely known as very effective, but before long, salt bananas came down from the mountains into the city.”
What Dr. Fukuda focused on were the nutrients found in bananas.
Dr. Fukuda said, “To help the body retain water, it is important to efficiently take in three things: sodium, potassium, and magnesium.”
He added, “Bananas contains very high amounts of potassium and magnesium. But they do not contain sodium, so by sprinkling on salt, you create an ideal food.”
One banana, about 100 grams, contains 360 mg of potassium and 32 mg of magnesium, making it richer in these nutrients than other fruits. By adding salt to supply the sodium that bananas do not contain, he says it can help against heatstroke.
