Omega-3 fatty acids are a type of polyunsaturated fat that is essential for the proper functioning of the human body. "Omega-3" refers to the location of the first double bond in the carbon chain of the fatty acid molecule, counting from the methyl (CH3) end. There are several types of omega-3 fatty acids, but the three most important ones are:
Alpha-linolenic acid (ALA)
Eicosapentaenoic acid (EPA)
Docosahexaenoic acid (DHA)