Lactic acid bacteria refer to bacteria that can produce lactic acid by using fermentable carbohydrates, while probiotics usually refer to active microorganisms that are implanted into the human body and play a beneficial role in the host. The scope of the two is different, and probiotics contain some lactic acid bacteria.

1. Lactic acid bacteria: including Lactobacillus, Bifidobacterium, Streptococcus, Listeria and so on. Not all lactic acid bacteria are beneficial to human body. For example, Listeria is harmful to human body, which can cause meningitis, septicemia in children and parenchymal lesions in adults when it is seriously infected. In addition, lactic acid bacteria can also promote growth and development, improve intestinal flora imbalance and help improve digestive function. If there are symptoms of gastrointestinal dysfunction such as abdominal distension, diarrhea and constipation, lactic acid bacteria can be taken appropriately to improve gastrointestinal dysfunction;

2. Probiotics: including lactic acid bacteria, yeast, Bacillus, Lactobacillus bulgaricus, etc. Under normal circumstances, probiotics can produce organic acids through fermentation, which can reduce the pH value in the intestine, promote intestinal peristalsis, and then increase osmotic pressure, thus alleviating constipation. If you have obvious diarrhea, abdominal distension, gastrointestinal dysfunction or intestinal infection, you can take yeast and Lactobacillus bulgaricus as appropriate under the guidance of a doctor.

The way to supplement probiotics or lactic acid bacteria in daily life is usually oral and local application, such as drinking yogurt containing probiotics or lactic acid bacteria. However, it should be noted that the more probiotics and lactic acid bacteria are ingested, the better. Blind supplementation may lead to the destruction of intestinal environment and flora balance, resulting in adverse effects.