Probiotics contain different types of microorganisms such as yeast (Saccharomyces boulardii) and bacteria (eg Lactobacillus, Bifidobacterium). Microorganisms (flora) are naturally present in the stomach/intestine/vagina. Certain situations (e.g. use of antibiotics, travel) can alter the normal balan

"Probiotics​" are often used in dairy advertisements to promote the health benefits of the product. However, not long ago, "New Scientist" magazine published an article saying that probiotics are basically useless and may even be harmful. The article pointed out that the survival status of probiotics in the gut varies from person to person, and there is no universal probiotic for everyone.

At present, the commonly used probiotics for babies mainly include 4 dosage forms: tablet, drop, capsule and powder. Different dosage forms have different storage methods.

Some studies have pointed out that the proportion of beneficial bacteria in the intestines of people with strong physique reaches 70%, that of ordinary people is 25%, and that of people with constipation is reduced to 15%, while the proportion of probiotics​ in the intestines of cancer patients is only 10%. Therefore, in the long run, appropriate supplementation of some foods rich in probiotics is of great significance for maintaining intestinal health.