What Are the Dangers of Omega 3 & Fish Oil?

Studies show that doses of Omega 3 contained in fish oil can lead to a lower risk of heart disease, strokes, blood pressure and atherosclerosis (hardening of the arteries). The active ingredients in fish oil include docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Despite Omega 3's benefits, there are several dangers in consuming Omega 3 from fish oil.

Toxin Levels

• Some fish species contain high levels of mercury and polychlorinated biphenyls (PCBs) due to industrial pollution of waterways where the fish reside. Although the likelihood is low, these high levels of toxins can remain in the fish oil and be passed on to individuals.

Allergies

• A small percentage of people are allergic to fish, and this allergy might be aggravated by consumption of fish oil. This allergy usually is manifested through skin rashes.

High Doses

• Excessive consumption of Omega 3 can increase the risk of bleeding, including hemorrhagic or bleeding stroke. A hemorrhagic stroke refers to bleeding in the brain or in the soft tissues covering the brain.

Gastrointestinal Side Effects

• Omega 3 and fish oil consumption can lead to gastrointestinal illnesses, including diarrhea, acid reflux and heartburn.

Low Blood Pressure

• Although reducing blood pressure is usually positive for individuals, some people already have low blood pressure. The consumption of Omega 3 might prove harmful to these people, especially if they already take medicine to lower blood pressure.