Another small study showed that after feeding, vinegar intake encouraged feeling fuller, but that by inducing nausea, it did so. None of these reports (and none that I could identify in a medical literature search) examined
apple cider vinegar directly. 39 research participants were randomly allocated to observe a limited calorie diet with apple cider vinegar or a limited calorie diet without
apple cider vinegar for 12 weeks in a more recent study. Although both groups lost weight, it was lost by the apple cider vinegar party. This one was very limited and short-term, as with many previous studies.
All in all, there is no convincing empirical proof that vinegar intake (whether or not of the apple cider variety) is an effective, long-term way of losing extra weight. (A variety of studies, on the other hand, indicate that vinegar could avoid rises in blood sugar in individuals with prediabetes and type 2 diabetes by preventing the absorption of starch, possibly for another day.) Also among advocates of apple cider vinegar for weight reduction or other health effects, it is unknown when it is optimal to consume
apple cider vinegar (for example, when there is a certain time of day that would be best?) or how much
apple cider vinegar is ideal every day.