Evidence of other risks associated with vitamin D supplements is still unclear. However, there are suggestions of greater risks of death and chronic disease with long-term high intake of vitamin D, the committee noted.
The report's recommendations for vitamin D do not include increasing sun exposure, which can boost the risk for skin cancer.
Dr. Sundeep Khosla, president of the American Society for Bone and Mineral Research, said that "the recommendations overall are very sound."
Khosla also agreed that most people get enough calcium in their diet, particularly if they eat dairy foods. "One of the misconceptions people might have is they need to take what they get in their diet plus 1,200 milligrams of supplements," he said.
For vitamin D, taking a multivitamin plus diet will get people to the amount they need, he said.
However, Dr. Michael Holick, director of the General Clinical Research Center at Boston University Medical Center, expressed disappointment in the recommendations for vitamin D.
Holick believes that most people should be taking vitamin D supplements.
"I think there is no downside to people increasing their vitamin D intake," he said. "I personally get 3,000 IU of vitamin D a day. I have most of my patients on 3,000 IU a day and they are all in good shape."
This level of vitamin D will maximize bone health and not be toxic in any way and "may have some additional benefits," Holick said.
A group representing the nutritional supplements industry agreed that the IOM report fell short when it came to vitamin D.
"While an increase in the recommendations for vitamin D will benefit the public overall, such a conservative increase for the nutrient lags behind the mountain of research demonstrating a need for vitamin D intake at levels possibly as high as 2,000 IU/day for adults," Andrew Shao,
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