Invite some bacteria to the breakfast table and you could boost weight loss. It sounds gross but we’re talking friendly bacteria that you need to keep your gut in optimal working condition. These microorganisms are found in probiotic foods and have funky names like lactobacillus acidophilus. Research has linked them to weight loss says Kara Landau, a gut health expert at Travelling Dietician, in New York City. One of the best ways to get your dose of probiotics is with a delicious and tart milk-based drink that’s incredibly versatile. Kefir! It’s thicker than milk but thinner than yogurt and has been associated with a lower body mass index, less body fat and smaller waist circumference.