Much of the research on apple cider vinegar has looked at its impact on blood sugar and cholesterol levels.
In one clinical trial published last year, researchers recruited 80 adults with type 2 diabetes, split them into two groups, and then followed them for eight weeks.
Both groups were told to eat a healthy diet with plenty of fruits, vegetables and whole grains while limiting junk foods high in salt, sugar and fat.
One group was also instructed to consume the equivalent of two tablespoons of apple cider vinegar daily, ideally with lunch or immediately after it
After eight weeks, the researchers found that the people in the apple cider vinegar group had significantly greater reductions in their blood sugar levels.
They had larger improvements in their cholesterol and triglyceride levels, and greater reductions in their body weight and waist circumference.