Vitamin D plays a vital role in various bodily functions, including bone health and immune response. While supplements can help those who are deficient, experts emphasize that not everyone needs them. Approximately 35% of U.S. adults lack sufficient vitamin D, particularly those at higher risk, like older adults or those with obesity. Sun exposure is a natural way to gather vitamin D, though care must be taken to prevent skin damage from UV rays. Dietary sources are also important, with foods like fatty fish and fortified products providing additional options for maintaining adequate levels.
Vitamin D is essential for good health, but supplementation should primarily be considered for those who are deficient rather than as a blanket recommendation for all.
Experts highlight that while vitamin D can be obtained from sunlight, moderation is key to prevent skin damage, recommending about 15 minutes of sun exposure.
Food sources of vitamin D like fatty fish and fortified dairy can help meet nutritional requirements, but many people remain deficient due to inadequate dietary intake.
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