There is limited evidence that drinking apple cider vinegar after a meal may help people with diabetes moderately lower their blood sugar, but there's nothing definitive. It specifically does not, according to the University of Chicago School of Medicine, help manage hypertension and it also can erode the enamel of your teeth. There have been some wild case studies about tooth decay of people who have been drinking straight apple cider vinegar all the time. And then people are now using that to backfill. Like what he's telling folks is a scientific explanation for what they were already doing. Again, this was part of an American folk healing tradition.