Antacids enable people to eat foods they shouldn’t eat.

Perhaps you make it a point to avoid foods like fried chicken or cheeseburgers or french fries, because you get a stomachache afterward. This is your body communicating the message that these foods are not good choices.
Enter antacids, which mask the body’s normal reaction to greasy,
fried foods and allow you to eat them with abandon. Bad idea, says
Dr. Rubman.

By permitting you to consume foods that would otherwise “disagree” with you, these drugs are doing a tremendous disservice. Your stomach may feel better, but evidence of the body’s digestive discomfort is bound to emerge elsewhere for example, with intestinal gas, bad breath, a skin rash or worse.