I saw a counsellor once who was a big fucking unit (she said 42 stone, that's 588 lb).  I was supposed to be there an hour but bailed after thirty minutes and didn't go back.    Her advice...?  Eat for your blood type.  Nope.  Plus the smell...cloying yeast, moisty foisty nasty unwashed skin.  I could still smell it on my clothes hours later.