Study finds that imbalance in intake of two fatty acids leads to obesity
Xinhuanet Paris, July 18th (Reporter Li Xuemei) A recent study in France found that long-term excessive intake of omega 6 fatty acids and lack of omega 3 fatty acids can lead to hereditary obesity.
Researchers from the National Research Center of France and other institutions introduced in the new issue of the American Journal of Lipid Research that both omega 6 and omega 3 belong to polyunsaturated fatty acids, which are crucial to the functioning of the body, but the human body cannot Produced on its own, so it can only be taken from food. Omega 6 is mainly found in corn. Because some livestock consume large amounts of corn, their meat is also rich in omega 6, and half of human omega 6 is derived from meat and dairy products. Omega 3 is mainly found in flaxseed, fish and other foods.
Scientists have noticed that in the past 40 years, the obesity rate in Western countries has been continuously increasing. During this period, people's diet presented two characteristics: First, more and more high-energy food intake, lipids accounted for 35% to 40% of the nutritional content; Second, the food contains a large number of omega 6, The Omega 3 content is relatively small. The data shows that in the past 40 years, the intake of Omega 6 has increased by 250%, while the intake of Omega 3 has decreased by 40%. In France, the government suggested that the ratio of people's intake of Omega 6 to Omega 3 should be 5:1. In fact, the average level in the West is 15:1, and in the United States it is as high as 40:1.
In order to verify the relationship between Omega 6 and Omega 3 intake imbalance and obesity, the French team conducted experiments on rats. As a result, it was found that if omega 6 was in excess of omega 3 and omega 3 was lacking, the amount of fat in mice would gradually increase, and their offspring would also have problems with obesity. In addition, the mouse's body also has a metabolic disorder, such as resistance to insulin.
Researchers said that Omega 6 and Omega 3 are essential polyunsaturated fatty acids, but their intake must be reasonable, otherwise it will have an impact on health. They hope that the results of this research will attract the attention of the people and the food industry.
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