The most important “ingredient” in these juices may be the microscopic “bugs” living in the juice that then begins to stay and grow in your gut.

The scientific “buzzword” today for these thousands of tiny bacteria, virusi and fungi is “microbiome”.

When I was young and a Boy Scout First Aid trained “Corpsman” I thought of all these tiny creatures as “bad hombres” who would infect a cut or scratch, ooze nasty puss, and painfully kill you.

Today at least some of these tiny creatures are thought of as “Marshall Dillion Posses” rather than cruel hordes of merciless outlaw bandits.
They search out, attack, and kill the “bad guys” or at least run the undesirables “out of town.”