Vitamin D3 · 1000 IU

- Vitamin D3 (cholecalciferol) is probably more effective in restoring blood levels than the D2 form (ergocalciferol)
- 1,000 IU of vitamin D per capsule allows for easy daily dosing
- Easy to swallow and highly bioavailable capsule
- In an organic flaxseed oil base for better intestinal absorption
Vitamin D is a hormone now widely recognized as being important for many body systems and a large number of physiological processes. It may also be one of the most common nutritional deficiencies in the world. Many recent studies have linked lower levels to increased risk of cardiovascular disease, including hypertension, peripheral vascular disease, coronary heart disease, and heart failure, as well as several types of cancer, autoimmune diseases, and type diabetes. Vitamin D is necessary for intestinal calcium absorption, skeletal bone integrity, and skeletal muscle strength and function and has been associated with overall fitness. Vitamin D is essential for the proper functioning of the immune system and can reduce the risk of infection, particularly respiratory tract infections. Since virtually every tissue in the body has a receptor for vitamin D, it is difficult to overestimate its importance. Many practitioners recommend supplementation to achieve 25-OH-vitamin D blood levels between 50 and 80 nmol/L, which often requires doses of 1,000 to 2,000 IU per day, and higher for people with common genetic variants affecting vitamin D metabolism.