Some foods, such as fish, dairy products, and fortified cereals, contain vitamin D, but sunlight is still the best source. If your location or health condition prevents you from getting enough, you may need a vitamin D supplement.
Some foods, such as fish, dairy products, and fortified cereals, contain vitamin D, but sunlight is still the best source. If your location or health condition prevents you from getting enough, you may need a vitamin D supplement.
Vitamin D is known as the “sunshine vitamin” because it is produced inside the body when the sun hits the skin.
Many people take supplements in the colder months of the year, when cold, dark days limit their time outdoors. But declining vitamin D levels aren’t just a winter problem. Over the past two decades, the number of people with sufficient levels has declined dramatically .
Adults need 600 international units (IU) of vitamin D each day (800 IU if you're over age 70), which can be obtained through sunlight, diet, or supplements.
Vitamin D2, the plant-based form of vitamin D, is found naturally in mushrooms. Food sources that contain vitamin D3 include fatty fish, such as salmon, tuna, and mackerel; fortified milk and other dairy products; fish liver oil; and egg yolk.
Yet very few foods have enough vitamin D to meet the recommended daily intake, and the sun can be unreliable in certain climates, and prolonged exposure can lead to serious skin conditions.
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