There is no doubt that fish and fish oil is very good for you. Your grandmother probably told you that eating fish will make you smart, and she probably fed her children cod liver oil or another type of fish oil supplements daily. Well, she was on to something. Fish that are rich in Omega 3 fatty acids are very good for you, and are one of the most important supplements you can take.

Fish oil that is rich in Omega 3 has many health benefits, and surprisingly, both medical doctors and alternative health professionals agree that foods that are rich in Omega 3 are essential to good health.

Omega 3's are especially good for brain health, mental health and heart health. Taking fish oil supplements has been proven to reduce the risk of Alzheimer's, ADHD, depression, and many other mental health disorders.

A sufficient amount of these essential oils help to balance triglycerides in the blood that lead to high cholesterol, high blood pressure and heart disease.

Wild Salmon oil is a very good source of Omega 3, and the DHA and EPA levels are very good in it as well. Hoki is another fish that is a very good choice, as are tuna, mackerel and sardines. For the most part, cold water fish are the best choice.

You may be wondering why you need to take fish oil supplements, rather than just eating a lot of fish. One reason is that you would need to eat a large amount of these fatty fishes to get enough Omega 3 to be beneficial. This would cost an enormous amount of money, compared to the cost of supplements.

The other concern is that most fish today contain small amounts of pollutants and contaminants. Eating huge amounts of fish would put you at risk of mercury poisoning or other contamination. Fish oil capsules, pills and liquids are purified so they do not contain any harmful chemicals or metals.