Is this a thing? I know that "bromo" refers to Bromo-Seltzer, an antacid. Do people commonly joke about putting away the antacid to say that a meal is not nauseating? Or is this just another Lynn-idiosyncrasy?
If someone's a poor cook, I'd expect the food to taste bad or bland, but unless they actually have bad food-safety practices, I wouldn't expect it to cause digestive problems.
Maybe it's a generational thing? Decades ago, people were always fretting that various foods would "ruin your digestion."