How much Vitamin D do you need?
The amount of Vitamin D that is needed can vary widely between individuals. Some people might just need a small dosage such as Vitamin D 400 units. A more common dosage is Vitamin D 1,000 and a few people who really struggle to metabolize Vitamin D may need Vitamin D 50,000.
How much each person needs depends on a number of factors. Vitamin D is naturally created in our bodies by exposure to sun rays. The higher the intensity of those rays and the longer you are subjected to them the more Vitamin D your body will create and the less you will need from supplements.