I discovered this when I was traveling and got heartburn (which I rarely get) from some pizza (which I rarely eat). All I had in the hotel room was oranges. It worked to get rid of the heart burn. Try it out!
Fruits like limes and lemons are acidic, but they do alkaline the body and acid reflux and heart burn can tend to be too much acid so the citrus can neutralize it.
https://www.getgreenbewell.com/orange-juice-alkalizes-your-body-and-thats-a-very-good-thing/
Buy the book Unlocking the Ancient Secrets to Healing