How is fat digested and absorbed by human body?

Too much fat intake is harmful to human health, but we should also realize that a proper amount of fat is necessary for human body, because fat is an important part of human tissues and cells. Fat is also an important energy source. Each gram of fat can provide 9 kilocalories of heat energy, which is 2.25 times that of the same amount of carbohydrates or protein. Therefore, fat is a source of heat energy, which can save protein. Another important function of fat is to promote the absorption of fat-soluble vitamins to meet the needs of various physiological processes. In addition, there are several essential fatty acids (such as linoleic acid, etc. ) The human body cannot be synthesized, so it must be ingested from food, which can promote the growth and development of the body. If the body lacks essential fatty acids, there will be symptoms such as growth stagnation and reproductive dysfunction. It can be seen that moderate intake of fat is not only necessary but also beneficial to human health.

For children, the energy provided by fat accounts for about 35% of the total daily energy, and it is better for adults not to exceed 25%. If you have 50 grams of fat in your daily diet, you can provide enough essential fatty acids for your body.

[Ye Zhiwen (15)]