Fitness knowledge science: ten things about fat
United States Fun Science Web site, our understanding of fat - including what fat is good for us - is deepening. For example, we know that red meat and foods rich in saturated fatty acids such as meat products, cakes and biscuits are closely related to increased deaths from cardiovascular disease. Conversely, nuts and fish oils rich in unsaturated fatty acids help reduce risk. However, how to eat properly? Most of the energy we consume in our diet comes from carbohydrates. However, fat actually accounts for between one-quarter and two-fifths of adult energy intake, and half of it for newborns. Increasing the amount of fat in your diet doubles your energy. Removing fat from foods such as meat and milk can greatly reduce the energy it contains. Reducing energy intake is a way to effectively lose body fat compared to strengthening exercise. To do this, choose a low-fat diet, remove the fat from the meat, and use less oil. Limiting energy intake also requires a reduction in carbohydrate and alcohol intake. If the liver or abdominal fat accumulation of too many words are the most harmful, which could also lead to suffering from type II diabetes. Women have more subcutaneous fat than men, and men's visceral fat generally accumulates around the mesenteric vessels of the abdominal cavity. Visceral fat is faster than subcutaneous fat and can accumulate in the liver. Obesity is caused by the body's accumulation of excess fat in the diet. There is very little fat in the body that is converted from carbohydrates or alcohol, because carbohydrates and alcohol are used more as fuel than fat. But if you have too much fuel in your body, they will be stored in fat because of our limited ability to store carbohydrates. Body fat plays an important role in women's fertility. 20% to 30% of healthy adult women's body weight is fat - twice the proportion of men. If the ratio is below 18% , ovulation will stop, and if the ratio is too high - up to 50% - it will also lead to infertility. We need specific polyunsaturated fatty acids to keep our skin healthy. They also play an important role in cardiovascular health as well as brain and visual function. The main sources of these fatty acids are vegetable oils, nuts and fish oils. We need about 30 grams of fat a day to promote the absorption of fat-soluble vitamins such as vitamin A , vitamin D , vitamin E and vitamin K. Adding some oil to green vegetables and carrots can promote the absorption of carotene. The average blood cholesterol level of a group is an important indicator of the risk of coronary heart disease in this group. Studies have shown that replacing saturated fatty acids with polyunsaturated fatty acids can lower blood cholesterol and reduce morbidity, but it does not reduce mortality. Not all saturated fats increase blood cholesterol. The effect of increasing cholesterol is limited to lauric acid, myristic acid and palmitic acid. The food and nutrition policy has changed the food supply. In the UK, the energy intake of fats and saturated fatty acids fell from 42% and 20% in the early 1970s to 35% and 12% in 2000 , respectively , and has remained stable since then. Although the number of patients with obesity and diabetes continues to increase, the proportion of deaths due to cardiovascular disease caused by the 1994 to 1997 but never of 141 per 100,000 people dropped to 63 per 100,000 people in 2009 to 2011, which Mainly due to improved treatment, and control of risk factors such as blood pressure, smoking and cholesterol are also improving.
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1. Fat is an energy food.
2. Less energy intake and faster weight loss.
3. Which parts of the body are most important for fat accumulation.
4. The body uses carbohydrates instead of fat as a fuel.
5. Women need fat to maintain fertility.
6. Some fatty acids are vital.
7. We need fat to absorb some vitamins.
8. Large-scale effects on blood cholesterol.
9. Not all saturated fats are harmful.
10. Saturated fat intake is stable.
