Barley

Barley is a common cereal grain that is used in the production of beer. Every 100 grams contains 2-20 grams of beta-glucan. Beta-glucan is a prebiotic fiber that helps friendly bacteria develop in your digestive tract. Barley beta-glucan has also been demonstrated to reduce total and LDL (bad) cholesterol and the risk of cardiovascular disease. It may also aid in the reduction of blood sugar levels.

According to one study, barley beta-glucan enhanced metabolism in mice by suppressing hunger and increasing insulin sensitivity. Furthermore, barley is high in selenium. This improves thyroid function, gives antioxidant effects, and strengthens the immune system.