Vitamin D3 1000 IU from Doctor’s Best – supports healthy bone density and structure
What is Doctor’s Best Vitamin D3?
DOCTOR’S BEST Best Vitamin D3 1000 IU supports the healthy bone density and structure needed for optimal calcium absorption. Moreover, this nutrient strengthens and regulates immune function, supports optimal functioning of the cardiovascular system and improves cellular functions. It consists of D3, a naturally occurring form of vitamin D. Studies have shown that additional vitamin D3 (cholecalciferol) is much more effective at converting to active vitamin D in the body than vitamin D2 (ergocalciferol). This makes Vitamin D3 the beneficial supplement form of this nutrient. Vitamin D deficiency is common in over 75% of Americans who are deficient in this nutrient. People who live in the northern part of the United States have a higher risk of vitamin D deficiency due to a lack of sunlight.
How does Doctor’s Best Vitamin D3 work?
Vitamin D from consumption or exposure to the sun requires two stages of activation in the body. The first activation occurs in the liver and the second activation occurs in the kidney, regulating calcium metabolism. Vitamin D receptors are present throughout the body in tissues such as skin, cartilage, heart, prostate, bones and intestines, so the second activation step also takes place in local tissues. Vitamin D plays a role in most organs and body systems. It is hormone-like, known to interact with over 200 different genes, and plays a key regulatory role as a metabolic activator for many metabolic processes. It acts as a “molecular switch” by influencing the expression of many genes. Therefore, active vitamin D not only affects bone health, but also helps support the functions of the immune system, cardiovascular system, respiratory system and the musculoskeletal system.