Deficiency and insufficiency of this important nutrient has reached epidemic proportions around the world, making the achievement of optimal levels extremely important to overall health and well-being. D3 PLUS is ideal for those who have difficulty achieving and maintaining peak vitamin D levels. This often includes elderly patients with low vitamin D levels, those with challenges in absorbing and maintaining vitamin D levels, and overweight patients with an elevated body mass index that impairs vitamin D circulation. For those who require an immediate boost in their vitamin D status, this D3 PLUS formulation is a convenient, effective way to get the substantial support you need.