Estimated equivalency of vitamin D production from natural sun exposure versus oral vitamin D supplementation across seasons at two US latitudes
V Terushkin, A Bender, EL Psaty, O Engelsen… - Journal of the American …, 2010 - Elsevier
BACKGROUND: The relationship between oral vitamin D supplementation and cutaneous
photosynthesis is not well understood. OBJECTIVE: We sought to provide estimates of the
equivalency of vitamin D production from natural sun exposure versus oral supplementation.
METHODS: Using the FastRT simulation tool, we determined sun exposure times needed to
achieve serum vitamin D3 concentrations equivalent to 400 or 1000 IU vitamin D for
individuals of various Fitzpatrick skin types living in Miami, FL, and Boston, MA, during the …
photosynthesis is not well understood. OBJECTIVE: We sought to provide estimates of the
equivalency of vitamin D production from natural sun exposure versus oral supplementation.
METHODS: Using the FastRT simulation tool, we determined sun exposure times needed to
achieve serum vitamin D3 concentrations equivalent to 400 or 1000 IU vitamin D for
individuals of various Fitzpatrick skin types living in Miami, FL, and Boston, MA, during the …