Which might help neutralize stomach acid?

Proprietary medicine like 'Milk of Magnesia.

This is a mixture of magnesium carbonate and magnesium hydroxide.

Stomach acid is 'hydrochloric acid', naturally secreted into the stomach, to aid digestion.. The stomach works in a pH environment of '1'.

However, I you suffer with reflux/heartburn, there is too much acid in the stomach, usually from over eating fatty foods. The stomach is producing too much acid in trying to digest the fatty foods.

That horrible burning sensation in the throat from reflux is the hydrochloric acid bubbling up into the throat.

Now bearing in mind that all carbonates and hydroxides neutralise acids. to produce a salt, water , and Carbon dioxide.

Here are the reaction equations.

2HCl + MgCO3 = MgCl2(salt) + H2O + CO2(burp)

2HCl + Mg(OH)2 = MgCl2 + 2H2O

Hence the acid is neutralised to a salt , water and CO2. (stomach settles).

To avoid reflux/acidosis/heartburn, after food eat some acid fruits, like Apples, Oranges, etc., The 'Common ion' effect takes over from the 'H^(+)' ions in the fruit.