Hirvelä’s gluten-free oat bran is rich in protein and both soluble and insoluble fiber from oats. Regular intake of beta-glucan, the soluble fiber in oats, has been shown to lower blood cholesterol levels. High cholesterol is a risk factor for the development of coronary artery disease.* * The beneficial effect of beta-glucan is achieved by consuming 3 grams of beta-glucan daily as part of a balanced and varied diet and a healthy lifestyle.