NATURAL FACTORS SunVitamin D3 (2500 IU - 500 sgels)SunVitamin Tablets 2500 IU Natural Factors Vitamin D3 is better at raising your 25(OH)D levels than vitamin D2 and lasts longer in your body. Helps in the absorption and use of calcium and phosphorus Helps build strong bones and teeth Helps support immune function Keep your sunny outlook year round with the sunshine vitamin! Vitamin D, essential for both children and adults, is critical for tooth and bone health and helps regulate the bodys immune