According to Healthline, "...it is estimated that 40% of American adults have a vitamin D deficiency".
Sunlight, in the proper method and duration, is a great way to boost your vitamin D level. When the skin is exposed to sunlight, the UVB rays work with cholesterol in the skin cells to create vitamin D through synthesis.
Here are some ways to get some sun safely according to Healthline:
- Try to expose about one-third of your body to sunshine
- Noonday sunshine is the most efficient time to get the most out of your exposure
- Try going into the sunshine without sunscreen for the first 10-30 minutes. Apply sunscreen before your skin burns. Time without sunscreen depends upon skin sensitivity to sunlight.
- Try wearing a hat and sunglasses and exposing a different part of your body to sunshine
- 10-30 minutes of noonday sun several days per week should help boost vitamin D levels