Not sure if this answers your question, but I've had pretty bad bouts of acid reflux (my own fault for eating things like pepperoni, I guess) and it can take days for me to feel normal again after an attack. Tums do very little to help, but some of my family & friends recommended eating an apple a day. www.livestrong.com/article/30092-cure-acid
Since starting to eat an apple a day, I only suffer from occasional, mild heartburn, and I haven't had any acid reflux (but I also stay away from triggers as much as I can). The website lists Granny Smith, Red or Golden Delicious, or Braeburn, but I usually have either Fuji or Gala and they seem to work for me. I think any sweet apple will work.
Even if it doesn't really work to "cure" acid reflux, eating an apple a day can't be bad, right? Also, planning on an apple for a snack reduces the chances of me grabbing something unhealthy (and heartburn-inducing)!
Be the change you want to see in the world.