[Huck]

Because citric acid is added to almost everything. I’m just curious if it has anything to do with the widespread acid reflux problems. It’s added to so many products.

[Mase]

Citric acid is a very weak acid that is used universally because it is highly effective, diverse in it's use, and is cheap to produce.

Even so, the amount used in food and pharmaceuticals is so small that I can't imagine it would have much impact on acid reflux.