Omega-3 fatty acids are essential, hence we need them for our bodies to function and we need to get them from food, since our body cannot synthesize it. Omega 3 acids are ALA (a-linolenic acid), EPA (eicosapentaenoic acid) and DHA (docosahexsaenoic acid).
Most experts do agree that DHA and EPA from fish oil have better established health benefits. Consequently when we are looking for Omega-3, it’s important to have a content of EPA and DHA of at least 500mg for any pill. The most well documented benefits ofOmega-3 fatty acids are bringing down triglycerides and cholesterol (predominantly LDL fraction of it), this should prevent of development of arterial plaques and lower the risk of heart diseases.
Even not all studies showed clear benefit for the prevention of heart disease by taking fish oil, most of them did. Now drugs with very high dosage of omega-3 acids are available as prescription drugs made by all major pharmaceutical companies approved by the FDA for people who have triglycerides level of 500 mg per deciliter.
We do think that people with tendency to higher levels of LDL cholesterol and triglycerides in their blood would benefit from taking Omega-3. Also some studies, which did, show benefits of taking Omega-3 (mostly DHA) to improve brain and cognitive abilities, helps with anti-inflammatory activity and even some psychiatric disorders.
Omega-3 lately became quite popular as the treatment for brittle hair and dry, itchy skin. The dosage of daily intake is usually around 1,000 mg of fish oil and should not exceed 3,000 mg per daily.