Milk is a common drink in life and is one of the important ways for the body to replenish nutrition. However, rumors about milk have been common in recent years. Some people say that the reason why the shelf life is long is because of the addition of a large amount of preservatives. Long-term drinking is extremely harmful to health. Is this statement really credible?
1. Why is the shelf life of milk so long? Have you really added a lot of preservatives?
of course not. According to national regulations, pure milk is that cannot be added with preservatives. The length of shelf life is mainly related to the sterilization method.
. Low-temperature milk: Save for 2 to 7 days
Low-temperature milk uses pasteurization method, which uses a temperature of 60 to 85℃ to kill pathogenic bacteria, retain the flavor substances of the milk itself, and damages less nutrients in the milk.
, room temperature milk : Save for more than 6 months
room temperature milk uses high-temperature sterilization method, instantly heating the milk to 135~150℃ for 2~6 seconds, allowing almost all bacteria in the milk to be killed.
Generally speaking, pure milk only contains milk and does not contain other ingredients, while milk-containing beverage is different. It has a longer shelf life. contains a variety of ingredients, including preservatives, , including water, sweeteners, sour flavoring agents, fruit flavoring agents, etc. The water with the highest content is ranked first, and the milk content inside it needs to be ≥30%.
In other words, the milk we often drink on weekdays does not contain preservatives, so you can rest assured. However, many other beverages on the market have been found to contain preservatives. Can you still drink them with confidence?
2. Scan the 30 kinds of beverages, half of which contain preservatives. Do we need to worry?
In August 2022, " Consumer Reports " randomly inspected 30 common beverages on the market, and half of them were detected with preservatives.
Currently, there are about 40 types of food preservatives that can be used legally, and 23 of them can be used in beverages. Xiao Ai will tell you about the more common ones.
, carbon dioxide
carbon dioxide is an inorganic preservative and is widely used on carbonated beverage . When we drink cola every day, we will find bubbles on it and it is easy to hiccup after drinking it. In fact, it is the role of carbon dioxide. It can not only increase the flavor of the beverage, but also extend the shelf life.
potassium sorbate is a recognized low-toxic and efficient food preservative. It will not affect the color, aroma and application components of the food itself after normal use. After entering the body, it can participate in normal fat metabolism, and then be oxidized and decomposed into carbon dioxide and water , but excessive consumption can also cause harm to the body.
, sodium benzoate
For healthy people, after ingesting a small amount of sodium benzoate, it will be metabolized into harmless 1 horse uric acid is excreted with urine. However, if the intake is too large, it may affect the effect of liver enzymes on fatty acids. A large amount of sodium element will also affect the heart, renal function and blood pressure. Especially for some people with poor kidney and heart function, the damage to the body will be even greater.
Academician of the Chinese Academy of Engineering Sun Baoguo said that the preservatives allowed in my country have undergone strict safety assessment and procedural approval, and are in a synchronized state with most countries in the world. as long as it is used within the specified safe dose, any additive is safe and will not pose an additional threat to health.
Although it is normal to add preservatives to the beverage, as long as they meet the standards, it will not pose a threat to health, it is not recommended that everyone drinks more, for the sake of their own health.
3. Key points: Drink less of these beverages
1. Sugar-containing beverages
Researchers from the Harvard School of Public Health pointed out that drinking sugary beverages will cause a rapid increase in blood sugar and insulin in the body, and may affect cardiovascular metabolism and increase the risk of chronic diseases. In , diabetic patients, blood sugar control is not good, and it can increase the risk of death from cardiovascular disease or premature death.
, alcohol-containing beverages
Long-term intake of a large amount of alcohol can make people addicted. This is a chronic recurrent encephalopathy. Once alcohol addiction is addicted, it will have adverse effects on society, occupation and health, but patients cannot stop drinking. After alcohol enters the body through the mouth, it will cause adverse stimulation to the esophagus, stomach, and liver, causing systemic physical damage to .
, functional beverage
functional beverage refers to beverages that adjust the ingredients and proportions of various nutrients in the beverage, which can regulate human function to a certain extent after drinking, but do not aim at treating diseases. Common daily life include sports drinks, energy drinks, etc. This type of beverage mostly contains caffeine , taurine ingredients.
The functional beverages sold on the market are mainly anti-fatigue and energy replenishment. Long-term large intake may lead to excessive caffeine intake in the human body, which will lead to headaches, insomnia, palpitations, and other discomfort symptoms.
The British Daily Telegraph once reported that a man who worked night shifts for a long time relied on drinking a lot of functional drinks to refresh himself, but died of a sudden heart attack and drank four bottles on the night of his death.
No matter what kind of drink it is, it is not recommended that you eat too much. When you are thirsty, you should drink warm water, which is economical and affordable! Of course, you can still drink milk appropriately. It is recommended to drink one cup a day to help the body replenish nutrition. #绿子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子子� 》. Reporting Center of the Central Cyberspace Affairs Office.2017-11-23
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