Vitamin D3 · 1000 IU

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