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Anthocyanins May Help With Insulin Resistance, Cholesterol

Anthocyanins are the antioxidants that give fruits and vegetables red, orange, blue, or purple color. A recent study suggests that dietary supplements containing anthocyanins may help improve insulin resistance and cholesterol levels.


For this study, researchers pooled data from 19 randomized clinical trials that looked at the effects of anthocyanin supplementation on cardio-metabolic biomarkers in adults. The doses of anthocyanins in the trials ranged from 31.45 mg to 1,050 mg per day.


After examining the data, the researchers found a significant positive correlation between anthocyanin supplementation and the homeostasis model (HOMA-IR), which is a measure of insulin resistance. They also found an association between anthocyanin supplements and cholesterol levels when the dose was more than 300 mg per day for more than 12 weeks.


Researchers from Tehran University of Medical Sciences conducted the study. It was published online ahead of print on July 2, 2018, in Clinical Nutrition.


Blueberries, cranberries and acai have particularly high levels of anthocyanins.

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