I had colon polyps removed Almost a year ago and have been taking kombucha could it help prevent colon cancer if taken daily?

One line answer NO. KOMBUCHA , a fermented fungus tea used as health supplement in varieties of diseses from cancer to HIV etc has no scientific proof . Only one that benefits are the one that sells ,risk outweighs the unproven benefits If you have colon polyp go for scheduled endoscopic removal , get them analyzed & follow your MD s advise.
No evidence . It might increase your dividend payments if you can convince your friends to buy stock in the company that's selling it.