A recent issue of Molecular Nutrition & Food Research contained the following research on vinegar:
“Vinegar as a functional ingredient to improve postprandial glycemic control—human intervention findings and molecular mechanisms.” The abstract for the research notes, “This review has collated data from human intervention trials to show that vinegar consumption seems more effective in modulating glycemic control in normal glucose-tolerant individuals than in either type 2 diabetics or in those with impaired glucose tolerance.”
The full abstract and options to purchase the article can be found here.