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Hi. I"m a 53 year old male. I've been taking Vitamin D3 5000mg/day for the past three and a half years. i've come up to 83ng/ml from below 30 when i started. What would be a reasonable amount of Vitamin D3 to take now, per day, to maintain this level? I weigh 190lbs. thank you

Asked by  japostle89993200 on January 26, 2017

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