Snack guide

Scientists rank 15 favorite American foods by health

How good is pizza for you, really?

Feliks Tomasz Konczakowski via Giphy

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It helps to know how nutritious your food is when you’re looking to improve your diet.

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One way nutritionists visualize a food’s “healthiness” is by accounting for its many characteristics, such as vitamin and fat content.

Then, they give it a numerical ranking based on its total nutritional value.