Longevity: the benefits of eating fish

Many of the longest-living people in the world eat a fish-based diet. 

But we've also read about mercury contamination in fish. Are fish and shellfish safe?

 

This weekend, we launch our new column on longevity. Sharon Basaraba is a medical journalist and she writes about healthy aging for About.com. This week, Sharon talks about which types of fish to eat, and which ones to avoid.

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