Animals’ taste systems are specialized for the niche they occupy in the environment. That includes us. As hunters and foragers of the dry savannah, our earliest forebears evolved a taste for important but scarce nutrients: salt and high-energy fats and sugars. That, in a nutshell, explains the widespread popularity of junk food. — Mary Roach

Tags: Animals, Salt, Popularity, Mary Roach, American, Author

Mini who’s who:

Mary Roach : American Author
Born:  March 20, 1959

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