That's what I was thinking when I read it, but it seems strange that it isn't explicitly mentioned.

It also seems quite surprising to me that drinking pomegranate vinegar would increase muscle. Makes me wonder if there's something I'm missing.

Which doesn’t really make sense, as drinking ACV alone will definitely not result in a body recomp/the addition of muscle (every meat head lifter, myself included, would be drinking a few bottles a day in that case).