High-fructose corn syrup is a gut grenade. When your stomach is already angry, dumping a load of sugar into it is like yelling at a crying baby to “just shut up.” It usually backfires.
Sugar draws water into your intestines, which can cause diarrhea or more cramping. So while you’re sipping that sweet relief, your lower intestine is packing its bags for a messy vacation. Unexpected twist: Some studies suggest cold carbonation can shock the vagus nerve, actually triggering nausea in sensitive people.
What Coca Cola Does To Your Stomach at Irene Troyer blog
The Flat Soda Conspiracy
You’ve heard the old wives’ tale: let the soda go flat, then drink it. The theory is that the bubbles cause the pain, so removing them makes soda a safe, sweet placebo. But here’s the ugly truth—flat soda is just liquid candy with a bad attitude.
Without carbonation, you lose the burping benefit but keep all the stomach-inflaming sugar. You’re basically drinking a melted lollipop. Joke alert: Flat soda is what your dentist recommends… right after he buys a new boat.
