Marketers of fiction would like you to believe that the bride of Frankenstein was brought to life not by electricity but by an IV injection of kiwi-strawberry-sweet potato kombucha – the lightning strike was purely coincidental.
I don't know if there any health benefits that can be attributed to drinking kombucha. I still believe in science and the science is just not there. Kombucha probably has the same origins as tea. Nobody knows. Imagine if you will, the ancients abandon a full cup of tea and the perfect blend of yeast strains and bacteria colonize the tea. Weeks later a guy comes scrounging along and takes a sip of the tea and realizes how delicious it is and so kombucha is created. These are the same ancients that discarded an especially stinky fish carcass into a clay pot and then buried it underground. Six months later that same guy comes scrounging along, digs up the pot and sprinkles the aromatic liquid on everything he eats and realizes it's delicious and so fish sauce is created. That guy was the true pioneer foodie but nobody recorded his name.
I brew and drink kombucha because it's an alternative to beer, pop, energy drinks, etc... Kombucha satiates my desire for a beverage that's fizzy and complex like beer but without the buzz. Kombucha pairs well with all foods and it's super refreshing after a long bike ride. Nothing mystical about it. Let your body and your tastebuds speak to you, not the marketers.