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Vitamin D: Recent Recommendations and Discoveries.

Tregony Simoneau, Catherine M Gordon

    Adolescent Medicine: State of the Art Reviews
    |May 3, 2016
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    Summary

    Vitamin D plays a crucial role in immune health and bone development. Research is ongoing to determine optimal vitamin D levels for both skeletal and extraskeletal benefits, especially in adolescents.

    Area of Science:

    • Endocrinology
    • Immunology
    • Nutritional Science

    Background:

    • Emerging evidence highlights vitamin D's role as a hormone with significant immune-protective properties.
    • Current guidelines recommend vitamin D supplementation for bone health, targeting 25(OH)D levels above 30 ng/mL for at-risk individuals.
    • The optimal 25(OH)D threshold for extraskeletal benefits remains undetermined.

    Purpose of the Study:

    • To explore the extraskeletal benefits of vitamin D beyond bone health.
    • To investigate whether current 25(OH)D targets are optimal for all individuals.
    • To assess the potential benefits of higher vitamin D levels during adolescence for peak bone mass accrual.

    Main Methods:

    • Review of current scientific literature on vitamin D's hormonal functions.

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  • Analysis of existing guidelines for vitamin D supplementation and 25(OH)D targets.
  • Discussion of ongoing research into vitamin D's impact on immune function and skeletal development.

    • Main Results:

    • Vitamin D is recognized for its protective effects on the immune system.
    • Established guidelines focus on bone health, recommending specific 25(OH)D concentrations for at-risk groups.
    • The optimal 25(OH)D level for extraskeletal benefits and its impact on adolescent bone mass accrual require further investigation.

    Conclusions:

    • Optimizing vitamin D levels may offer benefits beyond skeletal health, particularly during adolescence.
    • While routine screening is not advised, targeted screening and supplementation are recommended for high-risk individuals.
    • Further research is needed to establish optimal vitamin D thresholds for comprehensive health benefits.