human
I've heard that a lot of people are going gluten-free. What is gluten and why are people avoiding it?
assistant
Gluten is a protein found in wheat, barley, rye, and some other grains. It’s what gives bread its chewy texture and helps it rise. People who have celiac disease can't digest gluten, so they must avoid it. Others may want to avoid gluten because it can cause digestive problems or bloating.