Essential for Maintaining Healthy Bone Growth and Density. Gluten Free, Non GMO LE Certified Dietary Supplement. Your skin produces vitamin D when in direct sunlight or indoor tanning devices, but that’s not an ideal solution for obvious reasons. Choose a potent vitamin D3 supplement from Life Extension instead. Vitamin D3 supports immunity, and it is particularly important to supplement during the winter months. • Supports the immune system • Supports healthy bone density • Promotes healthy cell proliferation • Promotes healthy cognitive function • Supports cardiovascular health • Can help maintain already healthy blood pressure Vitamin D3 can be synthesised by humans through the skin upon exposure to sunlight. Due to the winter, weather conditions and sunblock, our ability to produce enough vitamin D may be hindered. This emphasises the importance of taking vitamin D supplement, which can provide significant support for healthy bone density and play a role in regulating healthy proliferation of cells and on immunity. Research findings link a deficiency of vitamin D to many common age-related problems. Suggested use is 1 softgel daily with food.