Cant tolerate OJ, but lemonade for example does absolutely not help this. Same for ACV.Are you eating enough animal protein?
If yes try consuming something acidic everytime you eat some to increase its digestion. Things like lemonade, orange juice, coca cola or even water with some vinegar should work. Just make sure to rinse your teeth afterwards or use a straw to keep your them clean.
Liquid zinc sulphate works well in my experience. Yea you dont wanna use it for more than a week, 2 weeks max.
Ideally you would get those things from food but if its not possible make sure the supplements are clean and dont have any of those nasty fillers like silica, modified starch and cellulose, talc, titanium dioxide,...
what really helped my digestion was lemon water , but after a few days my skin broke out like crazy from it.