View photos of the medicinal plant Gentiana affinis (Pleated gentian), profiled in Medicinal Plants of the Western Mountain States.

A passage from Medicinal Plants of the Western Mountain States:

An often underutilized application of Gentian is as a restorative to digestive response when suppressed (or disrupted) due to anorexia nervosa, orthorexia, temporary feeding tube intervention, and other chronic gastrointestinal traumas. Taken 5–10 minutes before meals (or when a meal should be eaten) Gentian’s bitter tonic activity will help to reestablish the body’s normal digestive reaction to food.