Recently, it has been reported in the media that creamer contains fat powder, and the fat powder contains trans fatty acids, which can induce asthma, type 2 diabetes, allergic diseases and cardiovascular diseases. It also has adverse effects on fetuses and adolescents and may cause cancer. What is cream? How many trans fatty acids are there in vegetable fat powder? Can cream still be eaten?
Creamer ≠ trans fatty acid
In fact, milk essence is a kind of substance instead of milk. Its main component is vegetable fat powder. Non dairy cream or oil powder, also known as cream and powdered fat, was first used in coffee mate. It is a kind of powdered cream added in coffee making instead of milk. Its main components are vegetable fat, corn syrup and plant protein.
When we talk about the end of vegetable fat, we will associate it with trans fatty acid, and even equate it with trans fatty acid. In fact, it is not the same as trans fatty acids.
The raw material of vegetable fat powder contains hydrogenated vegetable oil. Hydrogenated vegetable oil is made from vegetable oil through hydrogenation process, which is commonly referred to as “hydrogenation”. Hydrogenation of vegetable oil is an operation to improve food processing performance by hydrogenation on unsaturated bond to increase the melting point of oil. The crisp effect of liquid vegetable oil is not good, but after hydrogenation, it is semi-solid at room temperature, which can meet the process and taste requirements. In addition, the chemical properties of hydrogenated vegetable oil are relatively stable, which can extend the shelf life, and the cost is lower than animal fats such as natural cream. Therefore, it is widely used in food industry.
If the hydrogenation of vegetable oil is not complete, there are some double bonds from the natural “CIS structure” to “trans structure”, which will produce some “trans fat”. Therefore, due to the hydrogenation process, there may be trans fatty acids in the plant fat powder, but the vegetable fat powder itself is not trans fatty acid, so it is not accurate to simply regard the fat powder or milk essence as trans fatty acid.
What’s more, incomplete hydrogenation of vegetable oil can produce trans fat. If it is completely hydrogenated, it will not produce trans fat, but saturated fat. Therefore, fully hydrogenated vegetable oils do not contain trans fatty acids. At present, the production of trans fat can be greatly reduced or eliminated by improving the hydrogenation process in food industry. At present, the label of famous brand or high-quality vegetable fat powder (coffee partner) products in domestic and foreign markets indicates “trans fatty acid is zero”.
Creamer is not the only source of trans fatty acids
It has been repeatedly emphasized in media reports that milk essence contains anti fat and is harmful to health. However, milk essence is not the only source of trans fatty acids. Trans fatty acids also exist in natural foods.
The main source of hydrogenated food, such as vegetable oil, is not completely hydrogenated during cooking. In addition to processed foods, trans fatty acids are also present in “natural foods.”. According to the survey of the contribution rate of different foods in the diet of residents in Beijing and Guangzhou, the natural sources of trans fat are mainly ruminants, such as meat, fat, milk and dairy products of cattle and sheep. Although beef and mutton or milk contains trans fat, it is still a relatively high-quality food and should not be choked off because of the trans fatty acids. It is unrealistic and unnecessary to blindly pursue “zero intake” of trans fat.
Do Chinese eat more trans fatty acids?
Can creamer eat? In fact, we are still worried about whether trans fatty acids (TFA) will exceed the standard. How much trans fatty acids do we eat? In order to avoid the risk of excessive intake of trans fatty acids, the World Health Organization (who) recommended that the energy supply ratio of trans fatty acids should be less than 1% in 2003 Fat intake was lower than the recommended standard of 1%. It can be seen that most of us don’t eat much trans fatty acids.
However, it should be noted that although the total intake of TFA is lower than the recommended standard, according to the average TFA energy supply ratio of Beijing and Guangzhou age groups, the low age group has a higher level of trans fat intake. This means that for some people, the risk of trans fatty acids is still present. Therefore, we should not be blindly optimistic about trans fatty acids. If we do not pay attention, more and more people may exceed the standard. After all, there is a consensus on the harm of trans fatty acids in cardiovascular aspects. Therefore, it is necessary for consumers to consciously control trans fatty acids in their diet.
Generally speaking, the intake level of trans fatty acids in Chinese residents is not very high, but it is necessary to control the trans fatty acids in diet consciously. Consumers should also check food labels carefully when buying food. The common expressions of hydrogenated oil in the label ingredient list are hydrogenated vegetable oil, partially hydrogenated vegetable oil, hydrogenated palm oil, hydrogenated soybean oil, vegetable shortening, margarine, etc. Therefore, when purchasing packaged food, if the ingredients listed above are included in the ingredient list, they should pay more attention to the nutrition list on the label, and they can choose the food without trans fatty acid or with low content of trans fatty acid.