For fair-skinned people, experts recommend about 10 minutes in the midday sun, in shorts and a tank top with no sunscreen, to receive an adequate amount of vitamin D, according to U.S. News & World Report. People with darker skin may require longer time in the sun.Continue Reading
For naturally tan people, 15 to 20 minutes is sufficient, and for darker-skinned people, as much as an hour may be required. Other factors besides skin tone affect a person's ability to absorb vitamin D from the sun, according to the Vitamin D Council. Location, the time of day the skin is exposed, and the amount of skin exposed all affect how much vitamin D the body produces.
To be sure the body produces enough vitamin D, the Vitamin D Council recommends supplementing with vitamin D-3. The recommended dosage for adults is no more than 10,000 international units of vitamin D per day.Learn more about Skin Care