H2OVERSOLD:

"There really isn't data to support this," said Dr. Stanley Goldfarb of the University of Pennsylvania. "I think, unfortunately, frankly, they're not basing this on really hard science. It's not a very scientific approach they've taken. ... To make it a major public health effort, I think I would say it's bizarre."

Goldfarb, a kidney specialist, took particular issue with White House claims that drinking more water would boost energy.

"The idea drinking water increases energy, the word I've used to describe it is: quixotic," he said. "We're designed to drink when we're thirsty. ... There's no need to have more than that."

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