The saying that persimmons are similar to other foods comes from tannic acid (also called tannic acid, tannic acid and gallic acid) in persimmon cells, which is what people call astringent substances. When eating persimmon, the cells are chewed, and the tannic acid inside will flow out and combine with the saliva protein in the mouth, which will make people feel "astringent" and stimulate the mucosal protein in the mouth to make it astringent.

But in fact, this is a wrong legend.

1, persimmon tannic acid content is not high.

2. Tannic acid leads to degeneration of protein, which is more easily absorbed by human body, rather than causing stones.

This answer is completely reliable, please refer to the health program of CCTV 10, which has already been mentioned.

Check the paper yourself! ! ! Note that it is a paper, not a health website. The answer upstairs must have come from the internet (it is already quite reliable, at least in part). Non-professional websites copy common sense or other places. It is normal for common sense to be wrong.