A recent study suggesting that daily consumption of apple cider vinegar could aid in weight loss has been retracted due to significant errors. The retraction was announced this week by a major medical publishing group, more than a year after the study's initial publication. The study had claimed that apple cider vinegar could be more effective for weight loss than the diabetes medication Ozempic.

The study, conducted by Lebanese researchers, involved 120 overweight or obese young adults with an average age of 17. Participants were assigned to consume varying doses of apple cider vinegar—5, 10, or 15 milliliters—daily for 12 weeks. A placebo group received a fake vinegar. The researchers reported that those consuming apple cider vinegar lost an average of six to eight kilograms, with the highest doses resulting in the most significant weight loss. Additionally, they noted improvements in blood glucose, triglycerides, and cholesterol levels.

However, the study faced scrutiny shortly after its release. Concerns were raised regarding the statistical values, the reliability of the data, and the presence of multiple analytical errors. Experts also pointed out that the study lacked proper trial registration and that its results could not be replicated by outside researchers. Dr. Helen Macdonald, an editor at the publishing group, stated, "While we deal with allegations as swiftly as possible, it’s very important that due process is followed."

The authors of the study acknowledged the errors, describing them as "honest mistakes," and agreed with the decision to retract the paper. This retraction has implications for the ongoing discussion about the health benefits of apple cider vinegar, which has been popularized by celebrities like Katy Perry and Jennifer Aniston. They have touted its potential benefits for immunity and gut health.

Despite the retraction, some recent reviews continue to explore the effects of apple cider vinegar on weight management. One review suggested that a daily intake might help individuals with excess body weight manage their weight, although it relied partially on the now-retracted study's data. Another systematic review involving 25 trials found that while apple cider vinegar could lower cholesterol and other risk factors for heart disease, it did not significantly affect body mass index (BMI).

Apple cider vinegar is made from fermented apples and contains acetic acid, which is believed to have various health benefits. While it has been used for centuries as a remedy for ailments, excessive consumption can lead to side effects such as nausea, bloating, and tooth enamel erosion. As the conversation around apple cider vinegar continues, the retraction of this study serves as a reminder of the importance of rigorous scientific validation.