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Photoprotection and vitamin D: a review.

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PubMed
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Adequate vitamin D is crucial for skeletal and extra-skeletal health, including preventing falls and fractures in the elderly. Normal sunscreen use does not hinder vitamin D synthesis, supporting its continued use for skin protection.

Keywords:
extra-skeletalphotoprotectionskeletalsunscreenvitamin D

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Area of Science:

  • Endocrinology
  • Dermatology
  • Geriatrics

Background:

  • Vitamin D is essential for skeletal health in all age groups.
  • Sunlight exposure is a primary source, influenced by factors like skin pigmentation and season.
  • Recent discussions question sunscreen's impact on vitamin D synthesis.

Purpose of the Study:

  • To review the literature on vitamin D's role in skeletal and extra-skeletal health.
  • To evaluate the effect of normal sunscreen usage on cutaneous vitamin D synthesis.
  • To provide evidence-based recommendations regarding vitamin D intake and sun protection.

Main Methods:

  • Literature review of existing studies on vitamin D synthesis, health effects, and sunscreen use.
  • Analysis of data regarding factors affecting cutaneous vitamin D production.
  • Examination of current recommendations for vitamin D intake and sun protection.

Main Results:

  • Adequate vitamin D levels are vital for preventing osteoporosis, falls, and fractures in the elderly.
  • Emerging evidence links vitamin D to cardiovascular disease, autoimmune conditions, and cancer prevention.
  • Normal, regular sunscreen use in adults does not significantly reduce vitamin D synthesis.

Conclusions:

  • Vitamin D plays a critical role beyond skeletal health, impacting various chronic diseases.
  • Patients should not avoid sunscreen due to concerns about vitamin D deficiency.
  • Oral supplementation or fortified foods are recommended for maintaining vitamin D levels over excessive UV exposure.