A study at Childrens Hospital and Research center in Oakland have found that Vitamin D supplements should be given to:

  • nursing infants
  • the elderly and
  • blacks

In an article published in the Federation of American Societies for Experimental Biology, they said giving the low cost supplement was the purdent thing. The study shows that Vitamin D is important in the developement of the brain.  Both scientific and general public groups has long suggested the minimunm recommendations for Vitamin D3 should be raised from 200 IU for children and adults to between 800 and 1000 IU per day.Sources for the vitamin included a small amount from the diet and mostly from exposure to sunlight, where the body makes its own.

It is estimated that 60 percent of the population living in northern areas are deficient in Vitamin D. In adults, lack of Vitamin D may trigger osteoporosis, muscle weakness, osteopenia, bone fractures, cancer, inrfectious and autoimmune diseases, and cardiovascular disease. The vitamin is also linked to brain health.

Althought the evidense is still forming, lack of vitamin D is thought to produce cognetive or behavioral consequences, as studied on both animal and human trials. Dr. Michael Holick, a leading US expert from Boston University School of Medicine, called for current recommendations of 200 IU per day for children and adults up to 50 years of age for vitamin D need to be increased to 800 - 1000 IU vitamin D3 (New England Journal of Medicine, Vol. 357, pp. 266-281).