Grain foods are typically categorized either as whole or refined. Whole grains are grains that have been minimally processed to still contain the bran, germ, and endosperm, whereas refined grains only contain the endosperm.
A grain is made up of three parts: the outer bran, the inner endosperm, and the germ which is like the heart of the grain. A whole grain includes all three of these parts, whether intact (such as brown rice) or ground into flour and then prepared in foods (such as whole-wheat bread).
Is grain-free bad for dogs? Learn the facts about grain-free diets, potential risks, and if veterinarians recommend them.
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