Drew Hamilton wrote:

> In article <5d1ab031100e21f7ad421829d4cab1e4@news.secureusenet.com>, Murgi
> wrote:
> 
>>The urine check is not mandatory, but as long as it detects ketones, you can
>>be sure that body fat is burned.
> 
> 
> No you can't.  The ketones might be produced as a result of burning 
> dietary fat.

It happens when you do exercise and burn fat, which is OK.  It also 
happens to diabetic people when their cells starve for glucose due to 
insufficient insulin.