Apple Cider Vinegar for Digestive Health

Research suggests that the evidence supporting apple cider vinegar as a digestive health intervention is largely unfounded according to current published literature. The available evidence on this topic comes from a single 2021 narrative review — a study type that surveys existing literature rather than conducting new clinical trials — which found that while the underlying science of acid-base balance in the body is well-established and has legitimate medical applications, popular claims about home remedies like apple cider vinegar do not hold up to scientific scrutiny. The review noted that genuine, evidence-backed treatments for digestive conditions such as peptic ulcers do exist, but these are distinct from folk remedy applications of vinegar products. Overall, the current body of research reviewed here is limited in scope and mixed in direction, and readers should be aware that a single narrative review represents a preliminary level of evidence rather than a definitive scientific consensus.