How it is made makes a difference, the probiotics in Kombucha can be killed off with pasteurization - required in places like California. Beers like Gose and Berliner Weisse can be artificially flavored with acids, skipping the traditional step that would add Lactobacillus, and other good bacteria. Also, beer made the old fashioned way is loaded with vitamins - you'll often see Saccharomyces cerevisiae as the source on quality vitamin pills. Modern processes remove all that now to give it a nice clear look and clean taste, but you can retain them if you home brew. I'll warn you, it tastes very different - but you get used to it.