"I've never been much of a believer in supplements. However, after repeated invitations from my wife I started taking Omega 3 Fish Oil. Consequently, my cholesteral levels have improved and I've never felt so healthy."
- Eric B.
"Since I started supplementing with high-dose fish oil nearly 8 months ago my skin has not been nearly so dry, my allergies have almost entirely gone away and my general health appears to be improving."
"After one month of taking fish oil, my husband starting noticing positive changes in the texture of his hair, and his blood sugar levels were dramatically stabilizing, as he is a type 1 diabetic (for the past 27 years)."
Most Commonly Reported Side Effects
The side effects of fish oil supplements most commonly reported include a fishy odor on the breath, upset stomach (not as common), and greasy stools. A more serious side effect, but not as common, can be an increase in LDL cholesterol, a harmful form of cholesterol. Large doses of fish oil can possibly also cause weight gain and decrease the ability of the body to absorb vitamins A, E, D, and K from the stomach. If you have diabetes, use caution when taking fish oil supplements, they are reported to increase blood sugar in some people.
Taking large amounts of fish oils over a long period of time may increase the risk of mild bleeding resulting in nosebleeds and bruising. However, some people have reported that these symptoms quickly go away once dosages are lowered.
It's not a good idea to use cod liver oil as a fish oil supplement because it contains very high levels of vitamin A. High doses of vitamin A can cause headache, dry skin, itching, and liver damage.
A number of references in this text were taken from the following sources:
Fasching, P. "Fish Oil Supplementation Versus Gemfibrozil Treatment in Hyperlipidemic NIDDM. A Randomized Crossover Study," Hormonal and Metabolic Research 28 (1996).
Gray, D.R. "Fish Oil As An Adjuvant in the Treatment of Hypertension," Pharmacotherapy 16 (1996).
Micromedex Healthcare Series. Micromedex, Inc., 2001.