Although vitamin D is known for strengthening bones, one study showed older women who took too much vitamin D, suffered more fractures.
In the most extreme cases, an overdose of vitamin D can even be toxic.
Vitamin D helps your body to absorb calcium, but in very large quantities it can lead to a condition called hypercalcemia.
This is a condition where too much calcium builds up in your blood and you risk forming calcium deposits in your arteries.