Author Interviews, Diabetes, Diabetes Care, Fish / 15.01.2014
Risk of Diabetes and Fish Intake
MedicalResearch.com Interview with:
Jyrki Virtanen, PhD
Adjunct Professor of Nutritional Epidemiology
University of Eastern Finland
Institute of Public Health and Clinical Nutrition
Kuopio, Finland
MedicalResearch.com: What are the main findings of the study?
Dr. Virtanen: The main finding was that serum long-chain omega-3 polyunsaturated fatty acid (PUFA) concentration, an objective biomarker of fish and long-chain omega-3 PUFA intake, was associated with a lower risk of incident type 2 diabetes during the average follow-up of 19.3 years in middle-aged and older men from Eastern Finland. The risk was 33% lower in the highest vs. the lowest quartile after adjustment for potential confounders. In contrast, hair mercury, a marker for long-term exposure to mercury, was not associated with the risk. Previously in this study population, high hair mercury content has been associated with higher risk of cardiovascular diseases and attenuation of the beneficial impact of long-chain omega-3 PUFA on the risk. Also, we did not find associations with the intermediate-chain length omega-3 PUFA alpha-linolenic acid, either, which is a plant-based omega-3 PUFA. This suggests that the findings were specific to the long-chain omega-3 PUFAs from fish.
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