There are quite a lot threads about cider vinegar, It is very nasty if you have it neat so add water when taking it and clean teeth afterwards as no good for teeth.. The various literature is not clear cut if it works or not as is anecdotal comments - see previous thread called apple cider vinegar in the forum filed in diabetes management/ alternative treatments . Seems to work with some people not others . I found a bit of difference bit never sure if it was significant or not .
Never tried coconut vinegar so cannot comment