To date, few studies have tested the effects of Apple Cider vinegar health:
(1) Diabetes
Some preliminary research suggests that the vinegar (vinegar of cider from Apple and other types) can benefit people with diabetes. For example, in a 2007 study published in Diabetes Care, researchers found that type 2 diabetes patients taking two tablespoons of cider vinegar bedtime shown favorable changes in blood sugar levels in the morning. And in a study based on animal published in the journal of biological sciences in Pakistan, scientists found that diabetic rats fed a diet of improved apple cider vinegar for four weeks experienced an increase in HDL ("good") cholesterol (as well as a reduction in their levels of triglycerides, a type of blood fat harmful).
(2) Weight Loss
There is a scientific limited support with regard to the claim that Apple Cider vinegar can promote weight loss. However, one small study (published in biochemistry, Bioscience and biotechnology in 2009) found that obese people who consume acetic acid daily for 12 weeks experienced significant decreases in body weight, abdominal fat, circumference of waist and triglycerides.
In tests on mice, another 2009 study (published in the journal of agriculture and food chemistry) found that acetic acid may help to prevent the accumulation of body fat and certain fatty liver.
It is unknown if these studies tested the use of acetic acid derived from other types of vinegar or Apple Cider vinegar.
(3) Blood pressure
Acetic acid can help lower blood pressure, according to a study based on animal published in biochemistry, Bioscience and biotechnology in 2001. Once again, it is unknown if this study tested the use of acetic acid derived from other types of vinegar or Apple Cider vinegar.
(4) Cholesterol
Published in the British Journal of Nutrition, a 2006 study found that acetic acid fed rats for 19 days had a significant reduction in total cholesterol and triglyceride levels.
