If you take apple cider vinegar, it might speed up your metabolism. This could help you burn fat and lose weight. In addition, it has acetic acid in it, which may stop fat from building up. Some studies strongly back the idea that apple cider vinegar can help you lose weight, while other studies show a weaker link. According to a study published in Bioscience, Biotechnology, and Biochemistry, drinking vinegar can indeed help people lose weight, have a lower body mass index (BMI), and have lower cholesterol levels.