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Vitamin D is important for healthy bones and teeth. It may also help to protect the body against diseases such as diabetes and cancer. Now, researchers say Vitamin D might help fight brain diseases called dementias. Dementias damage thinking and memory processes, what scientists call “cognitive abilities.” Dementias are difficult to treat. And the disease is very frightening to those who have it. More than 47 million people around the world suffer from dementia. The World Health Organization reports that 60 percent of them live in low- and middle-income countries. Now a new study in the United States shows a possible link between dementia and low levels of vitamin D. Researchers at Rutgers University in New Jersey are exploring the relationship between vitamin D and dementia. The team recently measured vitamin D levels and cognitive ability in older people. Nutritional sciences professor Joshua Miller led the team. He said cognitive abilities differed among the subjects studied. He said tests showed that about 60 percent of the group was low in vitamin D. Those subjects who had low vitamin D levels showed more short-term memory loss. They also were less able to organize thoughts, order tasks by importance and make decisions. The findings suggest that vitamin D might play a part in slowing dementia. More studies, however, are needed to see if vitamin D supplements can help. The research was published in JAMA Neurology.
