I am 18 years old and a male, is it ok if I take 5000 iu vitamin D3 and a multi vitamin every day? Thank you a lot for answering my questions

Vit D3 & Multi. Most people need at least 1000-2000 iu vit d3 every day, but this amount might include what you get in food, etc. Have you had your 25 (oh) vit d level checked? Without knowing what is also in your multivitamin, it's hard to answer about taking 5000 iu more. You want a 25 (oh) vit d level of at least 50 for optimal health. http://ods.od.nih.gov/factsheets/vitamind-healthprofessional/.

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I am 18 years old and a male, is it ok if I take 5000 iu vitamin D3 and a multi vitamin every day? Thank you a lot for answering my questions

Yes, totally OK. Most multivitamins contain about 400 !u of vit d per day. I advise about 5000 iu of vit d a day in the winter months to achieve an optimal blood level of vit. D but the total of 5400 units a day is quite safe. Toxicity is not known to occur unless one takes at least 40, 000 units a day! -see http://articles.Mercola.Com/sites/articles/archive/2003/12/27/vitamin-d-quiz.Aspx. Read more...