Daily consumption of apple cider vinegar is linked to significant reductions in body weight, body mass index, and waist circumference, according to a research review published in the journal Nutrients.
Researchers analyzed 10 randomized clinical trials involving adults with overweight, obesity, or type 2 diabetes. The trials lasted between four and 12 weeks, with participants taking between 5 ml and 30 ml of apple cider vinegar daily, usually diluted in water.
Across nine studies evaluating body weight, researchers calculated an average reduction of approximately 7.45 kg among participants. The review also recorded an average body mass index reduction of about 2 kg per square meter and a waist circumference reduction of roughly 2.95 cm.
Randomized clinical trials are standard research studies where participants are randomly assigned to test groups to isolate the effects of a specific treatment. Body mass index is a standard medical calculation used by health authorities to evaluate weight categories based on height and weight.
The review authors emphasized that the 7.45 kg loss represents a combined statistical effect from the studies rather than a guaranteed result for every individual. The review found no significant effect on waist to hip ratios, while changes in body fat mass could not be reliably assessed because only one trial reported that data.
Dosage levels and biological effects
Polish news outlet Rynekzdrowia.pl noted that the impact on weight depended on the daily dosage. Significant weight loss occurred only at a dose of 30 ml per day, whereas doses between 5 ml and 15 ml did not reach statistical significance for body weight.
Higher doses were also associated with a greater drop in body mass index. Weight and body mass index reductions occurred in participants with overweight or obesity as well as patients with type 2 diabetes, with the diabetes group also showing a significant reduction in waist circumference.
Apple cider vinegar is made by fermenting apple juice to turn fruit sugars into alcohol and subsequently into acetic acid. Acetic acid is the primary active compound in vinegar, responsible for its distinct sour taste and strong aroma.
The study authors suggested several potential mechanisms for the findings, noting that acetic acid may delay stomach emptying and increase feelings of fullness.
Weight tracking and monitoring
In some of the reviewed trials, vinegar intake was combined with diet or physical activity. Separately, Ukrainian news outlet UNIAN previously reported that weight loss success is closely tied to weighing frequency, noting that individuals who step on the scale five to six times a week achieve better results than those who weigh themselves once or twice a week.
Nutrients is a peer-reviewed scientific journal covering clinical nutrition and human dietary health. Type 2 diabetes is a chronic metabolic condition affecting how the body processes sugar, where weight management often plays a key role in overall treatment.
