Vinegar helps control type 2 diabetes.

Preliminary evidence suggests that adding a little vinegar to the diet may help control postprandial and fasting blood glucose.

It's thought that the acetic acid in vinegar reduces starch digestion and slows gastric emptying. It may also increase insulin sensitivity.

Researchers are using 2.8 grams of acetic acid daily. This works out to be about 2 tablespoons of white or apple cider vinegar twice daily with meals.