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Round 'em up! Here are this week's top stories in healthy eating and food science issues.

Also, there will be a quiz.

Are you eating the

The author of Always Hungry, Dr. David Ludwig, says traditional diets work against our biology and disagrees with advice that the key to losing weight is eating less.

The Harvard School of Public Health looks at the two types of fiber, soluble and insoluble, each type being

beneficial to health in its own way -- with tips for upping your fiber intake.

A new study shows that for mice the

Childhood obesity is not just an issue in the United States. The WHO says

A study supports evidence that

A Siberian mammoth carcass holds clues that

humans were hunting high in the Arctic about 45,000 years ago, which is 10,000 years earlier than expected.

Harvard Medical School offers

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