Vitamin D - known to be important for bone health and for heart protection - can also cause harm if it exceeds normal levels, a new research has warned.
Johns Hopkins scientists suggested that vitamin D may stop conferring cardiovascular benefits and could actually cause harm as levels in the blood rise above the low end of what is considered normal.
The findings found that increasing levels of vitamin D in the blood are linked with lower levels of a popular marker for cardiovascular inflammation - c-reactive protein (also known as CRP).
Healthier, lower levels of inflammation were found in people with normal or close to normal vitamin D levels.
Any additional increase in vitamin D was associated with an increase in CRP, a factor linked to stiffening of the blood vessels and an increased risk of cardiovascular problems.
"Clearly vitamin D is important for your heart health, especially if you have low blood levels of vitamin D. It reduces cardiovascular inflammation and atherosclerosis, and may reduce mortality, but it appears that at some point it can be too much of a good thing," he added.
1 comment:
Looks interesting. But needs personal doctor advice always.
Interesting blog. I like it.
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