Essential fatty acids (EFAs) are not naturally produced in the body, and they supply linoleic and alpha-linolenic acid that have anti-inflammatory properties. They help maintain normal membrane structure and regulation of cell function, mediate cytokine effects, modulate the HPA axis, and may have antiviral properties. Anecdotally, EFAs improve pain, fatigue, and depression. They may decrease muscle fatigue, morning stiffness, and joint tenderness; help the digestive, cardiovascular, and immune systems; and assist reproductive functioning, metabolism, and brain functioning.
(Source: Chronic Fatigue Syndrome, Fibromyalgia, and Other Invisible Illnesses – The Comprehensive Guide, by Katrina Berne, Ph.D. Published by Hunter House books and available at www.hunterhouse.com.)