Hi there. I am most convinced that a little bit of Apple Cider Vinegar would help with your heartburn. My husband had developed heartburn recently and I found out about the wonders of the ACV which we both take about a teaspoon or two of in some juice daily. He no longer exeriences heartburn. I think the mechanism of why it works has to do with the acid production that your body creates. There are many places that you can go to online to see more info about it. I use Bragg ACV and I think they even have a very informative website. Go and read up about it. I think it may just be the best thing you could do for yourself. JoyceF

It's possible that your heart burn is due to low stomach acid, in which case the tums is only making matters worse, as it neutralizes the already little acid you may have to digest the food. ACV may be helpful in this case or betaine HCl supplements.
Also hiatal hernia is usually misdiagnosed and plays a big role in heartburn as it allows acid to come up causing heart burn (even though acid levels may be normal or even low). Wrong combination of foods can also create heartburn symptoms.
Mike

Contrary to what most people believe about heartburn, it does not come from an acidic stomach. Heartburn comes from a plugged up gut and an alkaline stomach. The acidity occurs before the stomach and causes heartburn. Apple Cider Vinegar is acidic and causes the stomach to become acidic, which allows the somach to digest food properly. When food is digest properly, the acid in your stomach is doing its job where it is supposed to. Apple cider vinegar is wonderful for heartburn. Make sure to get unfiltered, non-distilled, apple cider vinegar with the mother(It is cloudy). Drink one or two tablespoons of apple cider vinegar in a glass of clean filtered water or juice, three times a day and you will have a great way to balance your pH and get rid of your heartburn.

I would also consider drinking three glasses of distilled water with a pinch of unrefined Sea Salt . This will help clear your gut and colon of the blocked up undigested food.

Combined, ACV and the water with Sea Salt makes your whole body work better. Watch how your urine looks after this combination. It will turn from dark yellow with acid reflux to clear.
//www.curezone.org/blogs/m.asp?f=179&i=51
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try this drink once or twice a day on an empty tummy, it will most definitely help.

http://www.askmoreless.com/alkalising_drinks

it provides both the natural acids your tummy needs to digest food, as well as the minerals that are required for an innumeralbe amount of bodily function. you need BOTH to have good health.