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Omega-3 lowers inflammation in overweight older adults
Date:6/20/2012

COLUMBUS, Ohio New research shows that omega-3 fatty acid supplements can lower inflammation in healthy, but overweight, middle-aged and older adults, suggesting that regular use of these supplements could help protect against and treat certain illnesses.

Four months of omega-3 supplementation decreased one protein in the blood that signals the presence of inflammation by an average of more than 10 percent, and led to a modest decrease in one other inflammation marker. In comparison, participants taking placebos as a group saw average increases of 36 percent and 12 percent, respectively, of those same markers.

Chronic inflammation is linked to numerous conditions, including coronary heart disease, Type 2 diabetes, arthritis and Alzheimer's disease, as well as the frailty and functional decline that can accompany aging.

Study participants took either 2.5 grams or 1.25 grams of active omega-3 polyunsaturated fatty acids in their supplements. Polyunsaturated fatty acids are considered "good fats" that, when consumed in proper quantities, are associated with a variety of health benefits. Study participants taking a placebo consumed pills containing less than 2 teaspoons per day of a mix of oils representing a typical American's daily dietary oil intake.

"Omega-3 fatty acids may be both protective so that inflammation doesn't go up, as well as therapeutic by helping inflammation go down," said Jan Kiecolt-Glaser, professor of psychiatry and psychology at Ohio State University and lead author of the study.

"This is the first study to show that omega-3 supplementation leads to changes in inflammatory markers in the blood in overweight but otherwise healthy people. In terms of regulating inflammation when people are already healthy, this is an important study, in that it suggests one way to keep them healthy."

The study is published online and scheduled for later print publication in the journal Brain, Be
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Contact: Jan Kiecolt-Glaser
Janice.Kiecolt-Glaser@osumc.edu
614-293-3499
Ohio State University
Source:Eurekalert

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