Vitamin D3 provides cholecalciferol, which is more biologically active than ergocalciferol (D2). Vitamin D3 is ultimately converted to its hormonally-active form, calcitriol, in the kidneys. Calcitriol enhances dietary calcium and phosphorous absorption, stimulates the synthesis of osteocalcin (an important structural protein in bone), and supports a healthy immune response.
Alongside vitamin A, adequate vitamin D levels are essential in supporting a healthy immune response. According to the National Institutes of Health, the immune system needs vitamin D to fight off invading bacteria and viruses.
Suggested Use: For adults, take 1 soft gel every other day with a meal, or as directed by your qualified health care consultant.