Study: Magnesium (1978) High serum levels of magnesium
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In a 1978 study, the serum magnesium levels (how much magnesium there is in the blood) in 71 insulin-taking diabetic patients who had diabetes for 10 to 20 years were measured. The patients had diabetic retinopathy. They were divided into groups depending on the degree of severity of their diabetic retinopathy.
It was found that the diabetic patients with higher serum magnesium levels had less severe diabetic retinopathy than those with lower levels.
The conclusion was that low serum magenesium levels are a risk factor for diabetic retinopathy.
Published: Diabetes 1978 Nov;27(11):1075-7, P. McNair, et al.