A new study published in the American Journal of Clinical Nutrition suggests that substituting whole grains for refined grains increases calorie loss by reducing calories retained during digestion and speeding up metabolism. J Philip Karl et al quantify benefits of a whole-grain diet. Image credit: Tofs. Grains are a major food group that includes wheat, rice, oats and barley products. Whole grains include the outer nutritious layer of grains and...
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