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Link to the Studies –
Recommended Supplements –
NOW Vitamin D-3 5,000 IU,240 Softgels
Structural Support – 5,000 IU Highest Potency
Helps Maintain Strong Bones
Supports Dental Health*
NOW® Vitamin D softgels supply this key vitamin in a highly absorbable liquid softgel form. Vitamin D is normally obtained from the diet or produced by the skin from the ultraviolet energy of the sun. However, it is not abundant in food. As more people avoid sun exposure, Vitamin D supplementation becomes even more necessary to ensure that your body receives an adequate supply.
Vitamin D Immune System, Muscle Function, Cell Growth, Inflammation, Nerve, Calcium, Bones, UV Rays
What is vitamin D and what does it do?
Vitamin D is found in cells throughout the body.
Vitamin D has many roles in the body, including modulation of cell growth, neuromuscular function and immune function, and reduction of inflammation.
Many genes encoding proteins that regulate cell proliferation, differentiation, and apoptosis are modulated in part by vitamin D.
Vitamin D is important to the body in many other ways as well. Muscles need it to move, for example, nerves need it to carry messages between the brain and every body part, and the immune system needs vitamin D to fight off invading bacteria and viruses.
Vitamin D promotes calcium absorption in the gut and maintains adequate serum calcium and phosphate concentrations to enable normal mineralization of bone.
It is also needed for bone growth and bone remodeling by osteoblasts and osteoclasts. Without sufficient vitamin D, bones can become thin, brittle, or misshapen.
Vitamin D is produced when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation.
