The World's Healthiest Foods : Essential Guide ... Now

They should be cost-effective, particularly when purchased locally and in season.

To be classified as one of the "World's Healthiest Foods," an item must meet six rigorous criteria defined by the George Mateljan Foundation: The world's healthiest foods : essential guide ...

Foods must contain an exceptionally high concentration of vitamins, minerals, and antioxidants relative to their caloric content. They should be cost-effective

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