Quite a bit to say on the subject and I'll touch more on this later.

For now a tidbit on apple cider vinegar...  Taking two teaspoons of vinegar each day can dramatically lower your weight according to a number of studies.  According to Dr. Jarvis (an Apple Cider Vinegar expert) an average sized women at would lose 15 pounds a year, but consuming apple cider vinegar each day and the weight loss would be permanent.

Why this works is somewhat of a mystery but there are a number of theories.  One theory is that the potassium restores your salt balance which prevents water retention.  Another is that the apple cider vinegar improves digestion which in turns reduces the amount of fat absorbed into the body.  A third theory is that apple cider vinegar stimulates tryptophan production which reduces stress and the need for the body to consume stress relieving foods.  ACV can also improve protein and iron abortion into the body which improves the metabolism and promotes insulin production (all good for weight loss).  The pectin in ACV can absorb water and act as a appetite suppressant as well.   Lastly, it could be because apple cider vinegar is stored as glycerin the body which acts to scrub fat from the cells.