One obvious way it is good for health is that the fermented foods stay fresher longer so that eating them doesn't make you ill. A lot of people use them to hel

One obvious way it is good for health is that the fermented foods stay fresher longer so that eating them doesn't make you ill. A lot of people use them to help their microbiome recover after they've taken a course of antibiotics. Here's 411 pages of proof: https://pubmed.ncbi.nlm.nih.gov/?term=fermented+AND+foods+AND+antibiotics https://pubmed.ncbi.nlm.nih.gov/?term=fermented+AND+foods+AN...