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Chronic inflammation is an important contributor to a wide range of health problems, including depression and anxiety. Low levels of anti-inflammatory omega-3 fats in the body have been linked to increased rates of depression and anxiety, and people diagnosed with depression have been found to benefit from taking omega-3 fatty acid supplements.
The current study, published in Brain, Behavior, and Immunity, looked at the effect of omega-3 fatty acid supplements on inflammation and mood. The 68 healthy medical students who took part answered mood questionnaires and had blood tests to look at markers of inflammation at a low stress time (between exams) and at a high stress time (the day before an exam). Then they received either 2.5 grams of omega-3 fatty acids per day or placebo for 12 weeks, while mood and inflammatory markers were monitored at low and high stress times. The supplements provided EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) in a ratio of seven parts EPA to one part DHA.
The researchers found that looming exams did not affect the students’ inflammatory activity and mood symptoms; however, there were two important findings from the trial:
"We found that omega-3 fatty acid supplementation was associated with a reduction in anxiety symptoms," said lead study author Dr. Janice K. Kiecolt-Glaser of the Ohio State University College of Medicine. "Our findings provide the first evidence that these anti-inflammatory fats may have anxiety-relieving benefits in healthy young adults without an anxiety disorder diagnosis."
In addition to mood symptoms, chronic low-level inflammation has been linked to an array of health problems such as high blood pressure, heart disease, stroke, diabetes, obesity, asthma, and cancer. Here are some ways you can reduce chronic inflammation and improve your overall health:
(Brain Behav Immun 2011; online publication, accessed 26 August 2011)