Dangers of Excess Vitamin D
Various recent studies reinforce the evidence of the benefits of vitamin D in the prevention of chronic diseases such as diabetes, muscle disorders, until bone disorders. However that does not mean these vitamins must be consumed excessively.
A study from John Hopkins University showed excessive intake of these vitamins will not provide any benefit to the body, can even be harmful.
The study, published in the American Journal of Medicine is recommended to not need to take supplements of vitamin D. In the right dose, this vitamin protects the heart and blood vessels. However if excess can increase the risk of cardiovascular disorders.
According to the Chairman of the Study of Muhammad Amer, an assistant professor of medicine at Johns Hopkins University School of Medicine, healthy people need to stop taking vitamin D supplements because it would certainly not be beneficial.
“Excess consumption of vitamin D will not provide any advantage, it actually will make extravagant,” said Amer.
However, further Amer, there are certain groups of people who do need extra doses of vitamin D, such as the elderly, newly menopausal women, and patients along with renal disease.
The results concluded based on reviews of medical records of more than 10,000 patients in the National Health and Nutrition Examination Survey (NHANES). The survey was conducted from 2001 to 2004. Then, the data are compared along with data obtained from the National Death Index in 2006.
The results showed that levels of vitamin D in the blood that is 21 nanograms per milliliter 25. Levels are considered sufficient.
If the level is normal, vitamin D in the blood will deliver benefits that reduce the risk of death from cardiovascular disease by half. Levels of more than 21 nanograms, this protective effect actually be reduced, and even become dangerous.
The main source of vitamin D is from sunlight and fortified milk. Previous research showed that the addition of vitamin D to those who lack will reduce cardiovascular risk. Instead of excessive doses associated along with an increased risk.
Amer said, people need to consult a doctor if they are taking supplements of vitamin D.