Giant Food of Landover is using new labels to help shoppers identify gluten-free foods.
The blue and green signs will be used to mark nearly 3,000 products sold by the region's largest grocery chain.
About three million Americans have to eat a gluten-free diet because of Celiac disease, an immune disorder in which gluten damages the lining of the small intestine.
Others have adopted thegluten-free dietfor other personal or dietary reasons. Gluten is a protein found in carbohydrates including wheat, barley and rye. Gluten can also be used as an additive in items such as soy sauce and licori
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