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Anti-obesity effects of polyunsaturated fatty acids Introduction In recent years, obesity has become a substantial health issue in industrialized countries such as the United States. Obesity is strongly associated with greater chance of developing type 2 diabetes mellitus, hypertension, dyslipidemia, coronary heart disease, and congestive heart failure. The World Health Organization has defined obesity as one of the top ten global health issues. High-fat diets containing large amounts of saturated fat and low levels of unsaturated fat, may directly increase the prevalence of obesity (Li, 2008). Research studies have indicated that polyunsaturated fatty acids have an impact on body adiposity, also can exert вЂњanti-obesityвЂќ effects (Kang, 2003). These findings might be of fantastic significance, assuming relatively low intakes of polyunsaturated fatty acids in Western cultures. Polyunsaturated Fats There are several kinds of polyunsaturated fatty acids (PUFAs) and those fatty acids are termed specifically because they include more than 1 carbon double bond from the carboxyl end and all are named according to where the first carbon double bond proceeds in their fatty acid chain. These doublebonds stop the fatty acid from colagulating that is the reason why they receive the name unsaturated. They have two or more carbon-carbon double bonds. Linoleic acid (omega 6) contains two double bonds, and also is heavily consumed in Western cultures. Linolenic acid (omega 3)) comprises three double bonds, and is under consumed in Western cultures. The fish oil fatty acids eicosapentaenoic acid (omega 3), five double bonds) and docosahexaenoic (omega 3, 6 double bonds) will also be under absorbed in Western civilizations (Campbell, 2009). SO where do we locate PUFAS? .