I am so glad you asked this. I too am trying to get off Omeprazole. (I do not have a hiatal hernia that Inknow of). I took Zantac successfully for years but then it got pulled from the market. I have tried the protocols of 2 functional medicine doctors, one an MD and one has is a Dietician. I have cut many things out of my diet such as coffee, cooked tomatoes, milk (mostly - I struggle with thay- cheese). I try hard not to eat past 9 30 pm. With the Dietician I have been doing a gut biome protocol for months with the theory that I have a "leaky gut". Step 1 was a stool analysis. I had high candida and some of my probiotic bacteria was off balance. Step 2 was getting rid of and clearing candida out my system and adding certain probiotics. Step 3, where I am now in the last "gut healing" phase. Honestly I cannot say, so far, that is has helped my heartburn a lot. Still hopeful? I AM able to manage my heartburn with 20 mg famotidine in AM and in PM, plus Tums. It is not as comfortable as being in omeprazole. I will stay with it and see how it goes. I also take diglycrrized licorice (chewable) and Slippery Elm which the dietician recommended and which I have read about. I think the licorice helps. Cider vinegar makes my heartburn worse. My one 3-day attempt with celery juice also seemed to make it worse, though there were confounding factors so in may try it again.