Identification

• Fish oil is literally found in every kind of fish: fish oil is the fatty tissue of the animal. Fish oil can be found in fresh, canned or frozen fish. It is not found in "mock fish" that is made from wheat gluten or soy protein, however.
  Fish oil is also found in nutritional supplements that are often capsules of fish oil suspended in vitamin E and/or soybean oil. Closely read the labels of any nutritional supplements you chose to consume.
  
  

Benefits

• Fish oil may help lower the triglycerides and help individuals with heart disease by reducing blockage in the arteries, lowering blood pressure a little and reduce the risk for heart attack and death.
  
  

Effects

• Fish oil has gained popularity in the last 20 years as a way to reduce risk for coronary heart diseases. Critics counter that simply replacing fatty meats such as beef and pork will automatically reduce cholesterol levels. NIH researchers also state that consumption of fish oil from fish or fish oil supplements may help reduce irregular heart rhythms.
  They are correct: eating more fish will provide omega-3. Unlike animal fats in pork, red meat and poultry, fish fat is not saturated and is healthy for the heart.
  
  

Misconceptions

• If you have been told by your doctor that you are hypertensive or at risk for developing heart disease, consuming fish oil may be helpful in lowering your blood cholesterol, but it is not enough.
  Generally, hypertensives are advised by their physicians to revamp their diets completely to include more vegetables, fruits, lean protein, more fish, whole grains and to include regular, moderate exercise. They often advise hypertensive people (with high blood pressure) to also practice meditation or yoga to reduce stress levels.
  If you have high blood pressure or any other serious medical issues, consult your doctor.
  
  

Warning

• Do not believe that eating a lot of fish every day is a good idea. All fish contain methylmercury, that if overconsumed, is linked to serious illnesses and can be fatal. The EPA has issued specific guidelines as to what kinds of fish have lower levels of methylmercury.
  Pregnant women are severely restricted from eating certain kinds of fish or from taking fish oil supplements for this reason. Adults should carefully monitor the type and amount of fish eaten by children. See Resources for guidelines.