Supports energy metabolism Supports healthy thyroid function Essential nutrient for vision health To keep your body in A-1 condition, you need a good daily supply of vitamin B-2! Although it’s known as vitamin B-2, riboflavin is second to none in importance for good health. Best known for its crucial roles in thyroid function and energy metabolism, it’s also essential for healthy vision. Our Vitamin B-2 capsules provide a potent 100 mg of pure riboflavin to meet even the highest nutritional demands.