Sunshine on bare skin is our main source of vitamin D. So when we don’t get enough sun exposure – because of where we live, seasonal change, cloud cover, smog, sunscreen – the amount of vitamin D our body synthesizes is restricted. If you don’t go outside often, have darker skin, wear clothing that covers most skin, or are more than 50 years old, you may be at risk of vitamin D deficiency and could benefit from a vitamin D3 supplement.
Benefits of Vitamin D
Vitamin D does a lot of things: It helps our bodies to absorb calcium and to develop and maintain strong bones and teeth. It helps create healthy cells throughout the body, boosting immunity.
Why Vitamin D Is Essential
Without enough vitamin D, our bodies work far below their potential. Vitamin D deficiency can contribute to muscle weakness, aches, and pains. One study found that people with low levels of vitamin D were 40 % more likely to catch a cold or flu. As we age, less vitamin D is converted to its active form. As many as half of elderly people with hip fractures due to osteoporosis have low levels of vitamin D