I've read before adding vinegar (or lemon) to a meal - maybe as salad dressing or in a stew or soup - helps cut through fat. Now I've read more than once that vinegar can help lower your blood sugar after (post-prandial) a meal.
A study at Arizona State University tested a drink of apple cider vinegar, water and saccharine after subjects had eaten a breakfast of a bagel and orange juice. They found an hour after subjects' blood sugar was 35% lower than subjects who'd eaten the same meal without the V-drink.
I have to admit the cocktail seems hard to swallow - being almost half vinegar - but I'll leave that up to you.