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kenandruthb@btinternet.com

Vitamin D is made in the body through ultraviolet light. I believe it is uvb light that is needed. I understand that this is only available when the sun is higher than 45 degrees. Please could you have this information available? Or I can just see if I am taller than my shadow!

Ruth Brew , 12.06.2018, 08:41
Idea status: under consideration

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