Washington: Scientists have developed a model that predicts an individual`s vitamin D needs.It has been known since the early 20th century that our bodies are stimulated to make vitamin D when ultraviolet rays from the sun reach our skin.
Data from the volunteers--either African-American or of European ancestry--who had relatively low amounts of sun exposure suggest that they may need additional vitamin D to reach a target blood level of 75 nanomoles of vitamin D per liter of plasma. However, Stephensen has warned that some vitamin D levels indicated by the model exceed the level currently considered safe. More research, with a larger number of volunteers, may refine the predictive power of the model, he said. The research was published earlier this year in the Journal of Nutrition. ANI
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