The short answer is yes, but it is not a “magic bullet.” Studies suggest that the acetic acid in vinegar can help suppress appetite and improve insulin sensitivity, which helps your body manage blood sugar. Drinking a tablespoon or two diluted in a glass of water before a meal can reduce blood sugar spikes and eliminate that “post meal crash” that causes drowsiness. ACV will also help you feel full longer after a meal, and, while studies have been conducted on a rather small scale, ACV has shown the ability to boost metabolism and help your body burn fat more efficiently.