Why is apple cider vinegar so good for you?

@Wilbury: Look obviously cider vinegar ran off with your wife or something you really seem to hate it. Raw cider vinegar is alkaline in your body, that's a fact look it up

I would invite you to look it up. Choose your source carefully though. The internet is full of bad science. Vinegar of any kind is acidic and can do nothing but make your body slightly more acidic until it is buffered in your bloodstream.

@Wilbury: Yes, if you read my original post I said " in your body"

The kind spread by yoga instructors

@Wilbury: No, actually. There's been some studies done that show it to be genuinely good for a handful of medical applications. Chief among them was blood sugar control in diabetics, though there's also some promise in fat loss. Though there's definitely more testing that needs to be done, it would be wrong to call it complete quackery.

For reference, some of those studies:
http://care.diabetesjournals.org/content/27/1/281.full
http://care.diabetesjournals.org/content/30/11/2814.full
http://pubs.acs.org/doi/abs/10.1021/jf900470c