DWQA Questions › Tag: U-shaped curve
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Studies have shown that vitamin D levels have an inverted U-shaped curve, where low levels (<29.7 nmol/L) result in shortened telomeres on DNA, a sign of aging, but so do high levels of vitamin D (>95.9 nmol/L). Population-based studies and randomized clinical trials have shown a U- or J-shaped curve and suggested an increased risk of adverse outcomes in those with the highest serum Vitamin D levels, including falls, fractures, and frailty. Most studies have reported a higher risk in those participants with serum levels above 100 nmol/L. Are the deleterious effects noted in these studies caused by elevated vitamin D? If so, your support for taking 5,000 to 10,000 IU of vitamin D3 daily seems risky. What is most important for us to know?
ClosedNicola asked 11 hours ago • 
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