I am an O nonsecretor.
It has been suggested to me to try apple cider vinegar for benefits to increase the acidity in my stomach first thing in the morning. I did it today with no negative side effects, so far. I am also on a candida cleanse and the only fruits allowed are granny smith apples, cranberries, and lemons.
What has been anyone's experience with apple cider vinegar and apples in general for nonsecretor Os?