A healthy food—but not one typically equated with weight loss—is top for keeping excess pounds in check. Yogurt trumps fruits, veggies, and grains for weight loss, according to new research from The New England Journal of Medicine that followed weight patterns of 120,877 Americans. Though the reason isn’t clear, prior research suggests unhealthy intestinal bacteria may increase inflammation, leading to weight gain, while yogurt’s healthy probiotics have the opposite effect.