health food

Last year, grocery sales were up a modest 1.8%, yet sales of organic items more than doubled that growth rate, up 4.4%. Clearly, we're shopping differently. But are we even sure what an "organic" or "all natural" label means? It's more complicated than you might think.

These days everything from cereal to vodka is fortified with vitamins and minerals. But getting 500% of a day's worth of vitamin C might not be necessary -- or have any health benefits at all. In fact, several experts say getting mega-doses of some vitamins might even be risky, not to mention...