This Mardi Gras gumbo comes from a new cookbook linking healthy eating to good sleep

This recipe from “Eat Better, Sleep Better” was developed by Marie-Pierre St-Onge, the director of Columbia University’s Center of Excellence for Sleep and Circadian Research, and Kat Craddock, editor-in-chief of the food magazine Saveur.

St-Onge's research shows that a high-fiber diet can help lead to better sleep.