I've been supplementing with Vitamin D3 for a while. I recently grabbed some calcium+vitamin d tabs, that contain 10g (400 IU) of Vitamin D, and 800mg of Calcium.
Now it seems 10g is quite a small dose of Vit D, but would it be harmful to take more pills, considering they also contain calcium, so potentially getting too much calcium?
I've had them for a while as I was emptying the other bottle of D, so I can't just return them...