People have been fermenting food for millennia. Here's why more people are focused on gut health now

More people are focusing on their gut health, as fibermaxxing goes mainstream, colorectal cancer rises among young adults and personalized gut microbiome treatments become increasingly popular. Now, a generation- and culture-spanning way of preserving food is in the spotlight: fermentation. The federal government's latest dietary guidelines specifically encourage Americans to eat more fermented food. The foods have been further popularized by followers of Health Secretary Robert F. Kennedy…