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“Excess iron causes diabetes”

I don’t think I ever had iron overload.

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There are other causes. Excess of omega 6 fats causes diabetes.

I think men who consume chocolate or meat consume more iron than they need. Removing unnecessary iron increases ability to process sugar. See this:

Blood Letting in High-Ferritin Type 2 Diabetes
Effects on Insulin Sensitivity and β-Cell Function

https://diabetes.diabetesjournals.org/content/51/4/1000.long

I donate blood every two years to prevent excess iron.

If a person’s blood ferritin is less than 70 ng/ml, the person has an iron deficiency.