You might think peppermint soothes everything, but for some, it actually loosens the lower esophageal sphincter—that’s the muscle keeping stomach acid where it belongs. When it gets too relaxed, acid creeps up, and hello, heartburn.
It’s a classic irony: you drink peppermint tea for digestion, but it can trigger acid reflux in people with GERD or sensitive stomachs. If you feel that familiar burn after sipping, your esophagus might be sending you a warning.
