Foods that fit the ketogenic diet are high in fat and low in sugar. Matailong Du/NPR hide caption
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Low-carb diet or low-fat one? Either diet will trigger the body to burn off fat, a new study finds. Mahafreen H. Mistry/NPR hide caption
The secret to making something low-fat taste good and keep us fuller longer may be in its thickness. iStockphoto.com hide caption