I am a big guy, and I have suffered from GERD/AR for a few years now. Nothing worse than waking up in the middle of the night with a sour and burning sensation in the throat. You know that this is just the beggining of what is yet to come. You can't go back to sleep, and you know that you have to get out of bed. Then the worst part comes, the painful acid starts to work, and you try to cough it up, and those coughs are very painful and will bring tears to your eyes. You will notice an orange or yellow color in your cough coming out of your lungs. You did your best not to eat anything greasy that night, and you did not eat any chocolate or smoke. You keep trying to figure out how to stop the insanity. I have been there over and over. You read so many articles about this, and you just don't want to drink vinegar, or have to go hungry all night before bed.
I have found a solution for myself. It works for me, and I do not always eat a green apple everynight (but that helps too, Granny Smith). I have read elsewhere that oatmeal causes acid, but this cure works for me. Before going to bed, I make myself some oatmeal. I fill a cup halfway with water, then scoop at least a half cup of oatmeal into it. I do add a little salt for flavor, and then I put it in the microwave to heat and cook. The oatmeal should be very thick and not at all watery. Tastes really good, and I really enjoy it with a few almonds. This works for me even after eating onions, spicy food, tomato sauce, and even something greasy. Can't explain why it works for me and maybe not others. I am sleeping great now. Also, I have great bowel movements the next day, an added plus. Give it a try. May not be good for diabetics given the carb count.