Eight Glasses of Water a Day is a Myth-Eat Your Water

Since our bodies are about 70 percent water, it makes sense that 70 percent of the food we eat should be high in water content.

We've all heard we're supposed to guzzle eight glasses of water a day. But for most of us, it's hard to do. Well, here's some good news: turns out, that theory is totally watered down.

Sheah Rarback, Registered Dietitian, Miller School of Medicine: "It's a myth. No one knows even where it came from. There's absolutely no science that came up with the number eight as the magic number for water."

A 2002 study published in the American Journal of Physiology questioned the old recommendation of 8 ounces of water, eight times a day. After a thorough review, researcher Heinz Valtin concluded there was inadequate evidence that healthy adults - living in temperate climates and not engaged in rigorous activities -need large amounts of straight water.

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