Probiotics are very sensitive to gastric acid, and the normal PH value of gastric acid is about 1.8, which is not conducive to the survival of probiotics. So find a time when the stomach acid is low, that is, when the PH value is relatively high.

Traditionally, it is believed that the PH value of gastric acid in infants on an empty stomach is 4-5. However, according to domestic and foreign studies, the PH value of gastric acid in newborns (within 28 days) is about 2.3, and after 1 year, it is about 1.9, which is close to the adult level. When they are induced by hunger and food, the central nervous system will "direct" the stomach to secrete more gastric acid, which is obviously not suitable for the survival of probiotics.

In addition, when I get up in the morning, I secrete less gastric acid, but whether I can reach the PH value suitable for the survival of probiotics has not been found, and there is still controversy. Therefore, it is not recommended to eat probiotics on an empty stomach in the morning.

After eating, food stimulates the stomach wall, and the central nervous system further guides the increase of gastric acid secretion. In the early stage of gastric digestion, gastric acid secretion gradually reached its peak, so the supplement effect during eating was not very good, but it was much better than that during fasting.

Half an hour later -65438+ 0 hour after meals, we felt full and our gastric acid secretion decreased. In addition, at this time, the food is still in the stomach, which can neutralize gastric acid and increase the PH value, greatly reducing the damage to probiotics. It is more appropriate to ingest probiotics during this period.

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