Calories, Study | featured news

The theory that people might dramatically increase their life spans by severely restricting their food intake has been around for decades. But that theory takes a big blow from a new study that finds monkeys put on such a strict diet -- getting 30% fewer calories than usual -- live no longer than monkeys allowed a normal diet, says USA Today's Science Fair.

A new study to be published in the October issue of the journal Appetite shows just how simple cutting calories, without the hunger, can actually be. The secret is portion-controlled meal replacements.