The Science of Appetite

The Big Three

The Ornish Diet

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Philosophy Kiss meat goodbye. Cutdown on fats and simple carbs like sugar and alcohol.

How It Works At nine calories per gram, fat is more than twice as dense as protein and carbs. Thus dieters can consume the same amount of food but still lose weight if they eat less fat. Focusing on complex carbs like whole grains helps stabilize blood sugar, and lots of fiber increases satiety.

Downside Strictness. Giving up meat is hard, but no fatty nuts or avocados? Sheesh.

What the World Eats, Part I

What's on family dinner tables in fifteen different homes around the globe? Photographs by Peter Menzel from the book "Hungry Planet"

What Makes You Eat More Food

Seven ways our bodies tell us we're hungry--even when we're not

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