Vitamin D: The Sunshine Vitamin’s Surprising Anti-Aging Role
Vitamin D is vital for bone health, but its influence stretches much further. Emerging research suggests that adequate vitamin D levels may even slow down biological aging and cut the risk of age-related illnesses. Explore the benefits and risks of this important vitamin.
The Multifaceted Role of Vitamin D
Often called the “sunshine vitamin,” vitamin D aids the body’s absorption of calcium. It also has antioxidant properties and helps the immune system function properly, according to experts. Vitamin D is crucial in childhood, contributing to healthy development.
Dr. Julia Zumpano, a registered dietitian at the Cleveland Clinic Center for Human Nutrition, states that vitamin D is vital for bone strength and supporting the immune system.
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“Vitamin D is very important in the body because it contributes to the bone health, musculoskeletal health, immune function and many functions.”
—Dr. Julia Adamian, Internist at NYU Langone Health
The National Institutes of Health reports that the recommended daily intake of vitamin D is 600 IU for adults up to age 70, increasing to 800 IU for those over 70. Vitamin D deficiency affects approximately 25% of US adults (CDC, 2023).
Sources and Supplementation
Humans obtain vitamin D through sunlight exposure, certain foods, and supplements. It is synthesized in the skin upon contact with UVB rays. Foods naturally high in vitamin D include cod liver oil, salmon, and egg yolks.
Vitamin D supplements provide either vitamin D2 or D3. Research indicates that both forms are well absorbed, but vitamin D3 supplements might elevate blood levels to a greater extent. Most multivitamins contain vitamin D, but in smaller amounts.
Discuss with your doctor the appropriate dosage. Consulting a healthcare professional is very important when considering supplements. When taken as directed, vitamin D supplements are generally safe, however, taking too much may lead to health issues.
