The ingredient list opens with Apple Cider Vinegar and Green Tea Extract, but the site assigns them different jobs.
Apple Cider Vinegar is tied to appetite support in the mechanism section; Green Tea is tied to metabolism support. One is about how manageable appetite feels, the other about efficient metabolism.
The blog's Apple Cider Vinegar guide covers that ingredient alone. This post is about how the site divides the work between the two, not about either ingredient's research.