Most people
need at least 5,000 IU a day, and many need amounts as high as 10,000 IU, especially those who avoid the
sun. Get tested for
vitamin D3, and if the level is below 70, a supplement is needed.
Adding a moderate amount of calcium, (around 500 to 600 mg of calcium citrate) a day improves bone mineralization. A number of other nutrients also improve bone mineralization, including vitamin K, magnesium, zinc, green tea, and
curcumin.