Cardiovascular Benefits of Docosahexaenoic Acid
Research suggests that
fish oil (which contains docosahexaenoic acid along with other active components) may prevent
cardiovascular disease (including
heart attacks and
strokes). In people who have already had a heart attack, fish oil may decrease the risk of another heart attack and the risk of death. Additionally, taking fish oil after an
angioplasty procedure or
bypass surgery might help keep the blood vessels from closing back up. It is not clear if taking just docosahexaenoic acid provides these same benefits.
Mental Health Benefits of Docosahexaenoic Acid
Researchers have noticed that diets high in omega-6 fatty acids but low in
omega-3 fatty acids (such as the typical American diet) may increase the risk of
depression or other mental health problems. Although early studies suggest that fish oil may be beneficial for depression, one study showed that taking just docosahexaenoic acid did not seem to have much of an effect.
Diabetes Benefits of Docosahexaenoic Acid
Research suggests that docosahexaenoic acid is probably not useful for the treatment of
diabetes. Although people with diabetes may want to take docosahexaenoic acid for its possible cardiovascular benefits, docosahexaenoic acid does not seem to help with blood sugar.