Probiotics come from Greek, which means "beneficial to life". 1965 was first used by Lilley and Stillwell of St. John's University in the United States to describe substances secreted by microorganisms that can promote the growth of other microorganisms, corresponding to antibiotics. Since then, its meaning has changed many times. At present, the definitions given by the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO) are widely used: probiotics refer to living microorganisms, which are beneficial to the health of the host when ingested in sufficient quantities.

2. China is the earliest birthplace of probiotic food.

Although the word probiotic is relatively new, the "embryonic form" of probiotic food that humans began to eat has a history of about 10 thousand years. As early as 9,000 years ago in the Neolithic Age (7000 BC), people in Jia Hu, China, Henan Province had mixed rice, honey and fruit to make drinks by yeast fermentation, which is also the earliest record of probiotic consumption that can be found today.

3. The Secret of Longevity Yogurt

Yogurt has been eaten for a long time. It is the first time that Russian scientists working in the famous Pasteur Institute in France have proved its beneficial effects? Dr. lie Metchnikoff believes that many harmful microorganisms living at the end of human intestine will cause intestinal "corruption" and produce a variety of "toxins", and eating probiotics can "neutralize" this harm. 1905, Dr. Metchnikoff made a detailed study of the eating habits of local residents in Bulgaria, and proposed that part of the secret of people's longevity here is related to their long-term consumption of fermented milk. Bulgarian scientist Stamen Gorigorov isolated a bacterium that turned milk sour and named it "Lactobacillus bulgaricus", which is still the most widely used bacterium in yogurt fermentation. Because he put forward the concept of "ingesting microorganisms to promote health", he was also called "the father of probiotics". Although the evidence is still insufficient to support the view that yogurt contributes to longevity, it is undeniable that yogurt does have many beneficial effects on human health.

4. Can you accept heavy "feces capsules"?

There are millions and more than 2000 kinds of microorganisms in the intestines of healthy adults. These microorganisms live and multiply in the intestine, forming a unique ecosystem of human intestine, which is called "intestinal microecology" system, in which a large number of bacteria constitute "intestinal flora". According to pathogenicity, these bacteria can be divided into probiotics (good bacteria), pathogenic bacteria (bad bacteria) and conditional pathogenic bacteria (neutral bacteria, who helps more). In a healthy state, the number of beneficial bacteria greatly exceeds that of pathogenic bacteria. But when pathogenic bacteria exceed beneficial bacteria, human health will be threatened.