Getting too much vitamin D, especially above 4,000 IU per day, can be dangerous. If you already have osteoporosis, keep in mind that vitamin D and calcium alone are not enough to treat the disease.

What is the best vitamin for osteopenia?

The main ones are calcium and vitamin D supplements. Most adults should get between 1,000 and 1,200 milligrams of calcium and 600 to 800 international units (IU) of vitamin D every day.

Can Vit D increase bone density?

Vitamin D status is related to bone mineral density and bone turnover. Vitamin D supplementation may decrease bone turnover and increase bone mineral density. Several randomized placebo-controlled trials with vitamin D and calcium showed a significant decrease in fracture incidence.