Can probiotic yogurt be drunk for a long time? Although there are many names of the flora added in probiotic yogurt, their functions are similar, which is mainly beneficial to human digestion and absorption. It is also possible to drink it for a long time. However, because the flora can survive under the condition of low temperature and refrigeration, some of them will die during the transportation and sale of yogurt, so the number of live flora marked on the package is inconsistent with the number when it is sold and drunk. In addition, if you take too much, it will destroy the balance of flora in the human intestine, but it will reduce the digestive function.
It is understood that some lactic acid bacteria are harmful to human body. Probiotics refer to living microorganisms, some of which have strong acid resistance and can withstand the test of human gastric acid, while others can stably reproduce in human intestines for a period of time to serve human intestinal health. Bacteria are the main microorganisms in the human body, with about 400~500 species, and there are hundreds of billions to millions of species in the body, weighing 1.5~2 kg, and most of them are concentrated in the intestine. The microbial flora in the intestine can be roughly divided into beneficial bacteria, harmful bacteria and bacteria of both interest. Microorganisms in the intestine need to maintain microecological balance, but many factors such as aging, disease and antibiotic treatment will cause microecological imbalance in the intestine, which will lead to human diseases. It is found that artificial supplementation of active beneficial bacteria can not only adjust the imbalance of intestinal microecology, but also make it tend to balance, restore and maintain human health. It can also enhance human immunity; Promote intestinal peristalsis and help digestion; Inhibit the growth of spoilage bacteria; Reduce the risk of rectal cancer and colon cancer; Promote the absorption of minerals, especially calcium; Help lactose intolerant people (people who often feel abdominal distension or diarrhea after drinking milk) digest lactose; Prevent diarrhea caused by virus or salmonella; Prevent allergies and so on.
There are many kinds of "milk yogurt" made from milk (milk powder), sugar, lactic acid (citric acid), malic acid, spices and preservatives. Because it does not have the health care function of yogurt, it should be carefully identified when purchasing. If you want to drink it about two 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 at this time, lactic acid bacteria are easily killed by the high acidity of gastric acid, and the health care function of active bacteria will be weakened. If the gastric juice is diluted after meals, the pH value can be raised to 3~5. Rinse your mouth in time after drinking. With the development of lactic acid bacteria series drinks, the dental caries rate of children is also increasing, which is the negative effect of some strains of lactic acid bacteria. Active lactic acid bacteria in yogurt, if heated or diluted with boiling water, will die in large numbers, not only the unique taste disappears, but also the health care value of active bacteria will be lost.
Probiotic yogurt should not be taken with some drugs. Antibiotics such as chloramphenicol and erythromycin, sulfonamides and some drugs for diarrhea can kill or destroy lactic acid bacteria in yogurt. Don't feed the baby. Yogurt may affect the normal digestive function of infants, especially those with gastroenteritis and premature infants. It needs to be stored at 2℃ ~ 6℃. Under normal circumstances, active lactic acid bacteria are stored at 0℃ ~ 4℃, at this time, lactic acid bacteria are in a "dormant period", and the bacteria are active, but the reproduction speed is slow; With the increase of environmental temperature, lactic acid bacteria will multiply and die rapidly, and their nutritional value will also decrease. Yogurt containing active lactic acid bacteria has a short shelf life, usually about two weeks, and must be stored at 2℃ ~ 6℃, otherwise it will go bad easily. So when shopping, you must choose the yogurt sold in the refrigerator.
Precautions for pregnant women to drink probiotic yogurt 1. Choose a refrigerator.
Preserved active lactic acid bacteria will stop growing at 0℃ to 7℃, but with the increase of environmental temperature, lactic acid bacteria will multiply and die rapidly. At this time, probiotic yogurt will become an acidic dairy product without viable bacteria, and its nutritional value will be greatly reduced. It is best to drink probiotic yogurt within 2 hours after opening.
2. Don't heat it.
Active probiotics in probiotic yogurt, if heated or diluted with boiling water, will die in large numbers, not only the unique taste disappears, but also the nutritional value will be lost. In summer, it is advisable to buy and drink now, and in winter, it can be stored at room temperature for a certain period of time before drinking.
3. Identify strains
The strains contained in probiotic yogurt determine the health care value of yogurt. Good strains can fully ferment milk, thus producing a good taste. High-quality strains, such as Bifidobacterium longum, can resist gastric acid, cholic acid and oxygen, and directly reach the intestine to play a role.
4. Don't drink yogurt on an empty stomach.
Drinking probiotic yogurt on an empty stomach weakens the health care function. Drinking yogurt after meals, probiotics can help gastrointestinal peristalsis, resist harmful bacteria, improve gastrointestinal environment and maintain intestinal health.
5, you can't take medicine with yogurt.
Especially taking antibiotics such as chloramphenicol, erythromycin and sulfonamides and taking some drugs to treat diarrhea, because these drugs will also destroy or kill lactic acid bacteria in yogurt.