Swanson Tri-Fiber Complex Do the right thing for your heart and colon. A good daily intake of dietary fiber is essential for cardiovascular health and maintaining normal bowel function. Unfortunately, most of us dont get enough fiber in our regular diets. Thats where Tri-Fiber Complex comes in. This formula makes it easy to get the fiber you need every day by combining psyllium, oat bran, and apple pectin in convenient capsules. Dosage: Take 2 capsules 1 to 2 times daily with water.