Why don't some people like to eat fat? What are the advantages and disadvantages of eating fat meat?

Okinawa residents in Japan often eat fat but live long.

When Japanese medical experts conducted a national survey on the average age of the population, they found that Okinawa residents rarely suffered from coronary heart disease and hypertension, and their average life expectancy was much higher than the national average. However, the residents of this county have always loved to eat fat meat, especially the elderly over 80 years old, who eat it almost every day. It is said that the secret lies in cook the meat's way, and the fat is stewed for about 4 hours before eating. Tests show that long-term stewing can reduce saturated fatty acids and cholesterol of fat meat by 30%-50% and more than 50%.

Don't be too taboo, but eat it in moderation.

Fat is delicious and rich in fat. Fat can promote the absorption and utilization of fat-soluble vitamins A, D, E, K and carotene. Long-term abstinence from fat can easily lead to the deficiency of fat-soluble vitamins, and then cause vision, blood coagulation and bone growth disorders. If the elderly do not have a certain fat reserve, it is difficult to resist the invasion of diseases; When the body fat of women of childbearing age is less than 17% of their body weight, their fertility will be affected. Dicarbopolyenoic acid in fat is a long-chain unsaturated fatty acid, which is closely related to the growth and development of human nervous system and brain tissue, and can also prevent cholesterol accumulation and platelet aggregation. Animal fat also contains an alpha lipoprotein that can prolong life. This lipoprotein can not only prevent arteriosclerosis, but also prevent vascular diseases and hypertension.

However, Ma Fenglou, a professor at Nanjing Medical University, pointed out that the nutritional value of fat meat is not good enough, and the saturated fatty acids that are easy to cause atherosclerosis and coronary heart disease are above 40%, but the statement that saturated fatty acids and cholesterol can be reduced a lot after long-term stewing has not been confirmed. According to the physiological characteristics of the elderly, the requirement for diet is that energy should not be too high and digestion ability is poor. Therefore, the scientific answer is: the elderly don't have to avoid fat too much, but they should be moderate.