Too low or too high levels of Vitamin D both could be bad for health

According to the study of Danish scientists, high or low levels of vitamin D are detrimental to health. We may need to reconsider the nutrient intake.

Human blood vitamin D levels should not be too high or too low. According to scientists at the University of Copenhagen study, the first time they show there is a correlation between high levels of vitamin D content of death and cardiovascular disease. From a public health point of view, a lack of vitamin D has been a focus of attention. Several studies have shown that blood vitamin D levels are too low and a higher risk of dying from coronary heart disease or stroke-related. The study was published in the "Endocrinology and Metabolism."

"We studied 247,574 Danes‘blood levels of vitamin D, which is the maximum amount of data of such research. After extracting the initial blood samples of the testees, we analyzed the death rate in the last 70 years, during which there were 16645 deaths of patients. In addition, we also investigated the relevance between their death and the vitamin D levels in their blood, “explained Professor Peter Schwartz at Institute of Clinical Medicine Schwarz. The conclusion is obvious. Study confirmed relevance between the death rate and low levels of vitamin D, but the new finding also shows that higher vitamin D levels are also risk factors.

"If your vitamin D levels of blood are below 50 nanomoles or higher than 100 nanomolar per liter, then it is more relevant to death. We investigated the cause of the patients' death and found that, when the blood vitamin D levels are higher than 100 nanomolar, the higher risk of dying of stroke or coronary heart disease for the patient. In other words, the content of vitamin D in the blood should not be too high or too low. It should be between 50 to 100 nmol per liter. Our studies have shown that 70 nanomolar should be the most appropriate level, “Schwartz states.

No previous studies have shown high levels of blood vitamin D are also harmful to health. It may affect our future intake of nutrients supplements before that.

"This conclusion is very important because modern people are more and more concerned about the supplement of vitamin D. Taking this opportunity, we should consider more about whether it is suitable to intake more vitamins and other nutrients. And we also need to consult with a doctor on such a problem." Schwartz Says.

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