In fact, compared with their nutrition, the calories of milk and yogurt really don't need to be so cautious, but you should be careful about your favorite ice cream. It contains 784 kilocalories, and you need to jog for 40 minutes to consume the calories of a can of coke. (1 card =4. 185 joules)
Yogurt is a dairy product made of fresh milk or reconstituted milk and fermented by lactic acid bacteria.
The production process of yogurt is a curd-like product made by lactic acid fermentation with Lactobacillus bulgaricus and Streptococcus thermophilus in milk (sterilized milk or concentrated milk) with or without milk powder (skimmed milk powder). The finished product must contain a large number of corresponding active microorganisms.
Yogurt can be divided into solidified yogurt and stirred yogurt according to the different tissue state. The traditional glass bottle and porcelain bottle yogurt in China belongs to solidified yogurt.
Stirred yogurt is a little thinner than solidified yogurt, but it has a better flavor because of the addition of fruits, jams and other ingredients. Yogurt not only has all the nutrients of fresh milk, but also has obvious medical and health care functions.
The difference between yogurt and lactic acid beverage is that yogurt is fermented by lactic acid bacteria, and the protein content is the same as that of fresh milk (2.7%-2.9%), while lactic acid beverage is a beverage made of fresh milk or dairy products with water, sugar solution and souring agent (citric acid, lactic acid, etc.). ), its protein content is below 1%. Therefore, the nutritional value of lactic acid beverage is far less than yogurt.
Drinking yogurt "four is not suitable"
It is not advisable to drink too much.
Many people think that yogurt has high nutritional value and contains Lactobacillus acidophilus, which is beneficial to health. I think drinking more is beneficial and harmless. In fact, drinking too much yogurt will cause a temporary surplus of some nutrients, and may lead to metabolic disorders, especially the excessive intake of Lactobacillus acidophilus, which will lead to the imbalance of the original microbial flora in the intestine, thus causing some intestinal diseases.
Not suitable for cooking.
Lactobacillus acidophilus in yogurt is a living bacterial nutrient. If boiled, live bacteria will become dead bacteria, making bacteria lose their unique health care function. Of course, don't take it with boiling water, so as not to kill Lactobacillus acidophilus or reduce its vitality.
It is not advisable to drink on an empty stomach.
The survival of Lactobacillus acidophilus is closely related to the PH value in the gastrointestinal tract. According to the results of bacteriological culture test in medical research department, Lactobacillus acidophilus grows and reproduces well in the environment above PH 5.4, but it is difficult to survive below PH 2. For example, if you drink yogurt on an empty stomach, the PH value of gastric juice is generally around 2, and Lactobacillus acidophilus will be killed or its vitality will be seriously reduced, thus failing to achieve the health care effect that yogurt should have. Therefore, the best time to drink yogurt should be within 2 hours after meals. At this time, the PH value of gastric juice has generally risen to about 5, which is more suitable for the survival and growth of Lactobacillus acidophilus, thus contributing to its unique health care function.
It should not be taken with medicine.
It is best not to take medicine before and after drinking yogurt, especially antibiotics such as erythromycin, chloramphenicol and sulfonamides, so as not to kill Lactobacillus acidophilus in yogurt or reduce its vitality. Similarly, it is best not to drink strong tea before and after drinking yogurt. (Sohu Forum)
Six points to pay attention to when drinking yogurt
1, identify varieties.
At present, there are many kinds of "milk yogurt" on the market, which are made of milk or milk powder, sugar, lactic acid or citric acid, malic acid, spices, preservatives and so on. They do not have the health care function of yogurt, so they should be carefully identified when buying.
2. Drink about 2 hours after meals.
The PH value suitable for the growth of lactic acid bacteria is above 5.4, and the PH value of fasting gastric juice is below 2. If you drink yogurt, lactic acid bacteria will be easily killed and the health care function will be weakened. After meals, the gastric juice is diluted, and the PH value only rises to 3 ~ 5.
3. Rinse your mouth in time after drinking
With the development of lactic acid series drinks, the dental caries rate of children is also increasing, which is the leading role of some bacteria in lactic acid bacteria.
Step 4 don't heat it
Active lactic acid bacteria in yogurt, if heated or diluted with boiling water, will die in large numbers, not only the unique flavor disappears, but also the nutritional value is lost.
5, should not be taken with some drugs.
Antibiotics such as chloramphenicol, erythromycin, sulfonamides and astringents such as hypochlorous acid and tannic acid eggs can kill or destroy lactic acid bacteria in yogurt.
6. Don't feed the baby.
Yogurt contains less calcium, and babies are growing and need a lot of calcium. Antibiotics produced by lactic acid bacteria in yogurt can inhibit and destroy many pathogenic microorganisms, but at the same time, it also destroys the growth conditions of beneficial bacteria on human body and affects normal digestive function, especially for infants with gastroenteritis and premature infants.