Apple Cider Vinegar for Appetite Control

Research suggests that apple cider vinegar, and more specifically its active compound acetic acid, may contribute to appetite control and feelings of fullness, particularly when consumed alongside a meal. One small randomized controlled trial found that acetic acid produced higher short-term satiety scores after eating, though these differences did not hold up over a full two-hour observation window, leaving the practical significance unclear. Two reviews of the broader scientific literature identified several plausible biological mechanisms that could support an appetite-reducing effect, including stimulation of the gut hormone GLP-1 and alterations in digestion speed, though both reviews also noted that findings across studies are mixed and that the evidence base relies heavily on small, short-term trials. Overall, the research is preliminary and directionally supportive but falls short of the scale and rigor needed to draw firm conclusions, with reviewers consistently calling for larger and longer studies before vinegar can be confidently recommended for appetite or metabolic management.