“…hydrochloric acid with a glass straw for people to sip to acidify their stomach during meals. But even strong vinegar, acetic acid, helps the enzymes to function, and the Betaine hydrochloride definitely acidifies the stomach and works. But one long-range concern is that Betaine feeds into the methyl metabolism, and you want to look at the long-range effects of increasing methylation. Currently it's stylish to supplement methyl groups, but one of the background facts is that if you decrease the methionine and cysteine in the diet of animals,”