1. Combine the vinegar, fish sauce, sugar, lime juice, garlic, and red pepper flakes in a small bowl and stir until the sugar dissolves.
"It's a whole lot easier to make your kitchen work for you than against you," says Brian Wansink, the John S. Dyson Professor of Marketing and director of the Cornell University Food and Brand Lab. "You're going to reduce how much other stuff you eat, but you're going to be doing it unconsciously." He is the author of Slim by Design.