Final answer:
Gluten is a protein found in wheat, barley, rye, and oats. It causes an autoimmune reaction in people with celiac disease, leading to damage to the small intestine and various symptoms. Alternative grains and hidden sources of gluten need to be considered when following a gluten-free diet.
Step-by-step explanation:
Gluten is a protein found in wheat, barley, rye, and oats. It is commonly found in foods such as bread, pasta, baked goods, and many packaged foods.
Eating gluten causes an autoimmune reaction in people with celiac disease, resulting in damage to the small intestine. This can lead to symptoms such as diarrhea, anemia, skin rash, bone pain, depression, and anxiety.
As an alternative to wheat, people with celiac disease can eat other gluten-free grains such as rice, corn, quinoa, and buckwheat.
Gluten can also be hidden in various other products such as soy sauce, salad dressings, sauces, soups, and even medications.