Saturated fatty acids and trans fatty acids the main difference is that the nature of the different, different sources, different impact, as follows:

One of the nature of the different

1, saturated fatty acids

Saturated fatty acids, refers to fatty acids that do not contain unsaturated double bonds

Saturated fatty acids, fatty acids that do not contain unsaturated double bonds, is a class of fatty acids without unsaturated bonds in the carbon chain, is one of the basic components of the composition of lipids.

2, trans fatty acids

Trans fatty acids, is a general term for unsaturated fatty acids that contain trans non-*** yoke double bond structure. Fatty acids are divided into saturated fatty acids and unsaturated fatty acids, of which unsaturated fatty acids are fatty acids containing at least one carbon-carbon double bond on the fatty acid chain. If with the double bond on the two carbon atoms combined with the two hydrogen atoms in the same side of the carbon chain, the space conformation is curved, it is known as cis-unsaturated fatty acids, which is the vast majority of unsaturated fatty acids in nature form of existence.

On the other hand, if the two hydrogen atoms bound to the two carbon atoms on the double bond are on both sides of the carbon chain, the space conformation is linear, then it is called trans-unsaturated fatty acids.

Two, different sources

1, saturated fatty acids

These fatty acids are mostly contained in cattle, sheep, pigs and other animal fats, and a few plants, such as coconut oil, cocoa butter, palm oil and so on, also contain such fatty acids.

2, trans fatty acids

①, hydrogenated vegetable oils, refined vegetable oils, ruminant fat tissue and milk.

②, other sources: daily cooking process, especially frying, frying and grilling, vegetable oil in the cis-fatty acids in high temperature heat can also be partially transformed into trans-fatty acids, but the amount is very small.

Three different effects

1, saturated fatty acids

Saturated fatty acids are fatty acids containing saturated bonds. Dietary saturated fatty acids are mostly found in animal fats and dairy fats, and these foods are also rich in cholesterol. Excessive intake of saturated fatty acids is the main cause of elevated blood cholesterol, triacylglycerol, and low-density lipoprotein cholesterol (LDL-C), which can lead to narrowing of the lumen of arteries, formation of atherosclerosis, and an increase in the risk of coronary heart disease.

2, trans fatty acids

①, the formation of blood clots. Trans fatty acids will increase the viscosity and cohesion of human blood, which can easily lead to the formation of blood clots, for the elderly with fragile blood vessel walls, the harm is particularly serious.

2, affect the development. If you are pregnant or breastfeeding, excessive intake of food containing trans fatty acids will affect the health of the fetus.

3, affecting fertility. Trans fatty acids can reduce the secretion of male hormones, negatively affecting the activity of sperm and interrupting the sperm's reaction process in the body.

4, reduce memory. Studies have concluded that people with poor dietary habits in young adulthood have a greater rate of Alzheimer's disease (dementia) in old age.

5, easy to get fat. Trans fatty acids are not easily digested by the body and tend to accumulate in the abdomen, leading to obesity. People who like to eat snacks such as French fries should be alert to the fact that trans fatty acids in fried foods can cause significant fat accumulation.

6. It is easy to cause coronary heart disease. According to a recent study by the French National Institute of Health and Medical Research, trans fatty acids can reduce the level of cholesterol (HDL), which is effective in preventing heart disease and other cardiovascular diseases.

The above references? Baidu Encyclopedia - Saturated Fatty Acids, Baidu Encyclopedia - Trans Fatty Acids