Previous posts would suggest that failure on BMI alone is rare-in fact I've never heard of it on this forum.
However, having a BMI of 38 is likely to throw up some nasties in the near future. (Ever seen a really fat 80 year old? Even Cyril Smith is now slimmer)
And yeh yeh, before all you pie eaters protest, I know we shouldn't go off BMI alone.
