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Which of the following foods does not contain gluten?

  1. Barley

  2. Oats

  3. Rye

  4. Wheat

The correct answer is: Barley

The correct answer is that barley does contain gluten. Barley is one of the grains that is high in gluten. The question asks for a food that does not contain gluten, and while oats are often contaminated with gluten during processing, pure oats do not inherently contain gluten. Rye and wheat are also gluten-containing grains. Understanding these distinctions is crucial for individuals with gluten sensitivities or celiac disease. It's important to note that gluten is a protein found in certain grains, and recognizing which foods are gluten-free is crucial for dietary considerations related to these conditions.