How much vitamin D should you take? The best way to determine how much vitamin D to take is to do a blood test. Your results should be around the level 80. Do not go with some of the “normal “level of 30 to 50. An average amount of vitamin D to be taken per day is 10,000 units. More may be necessary if your levels are running low from the blood test or you’re dealing with a health problem. Be sure to take your vitamin D with food. I see many patients taking vitamin D and the levels are low and i

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