Why must I consult my physician when changing my diet and such?

Workout commercials and such always say you should consult your doctor before attempting any new diet/workout plan...



I consider this an insult to my pride.\



Why does changing your diet for the better and attempting to become physically fit constitute a doctor visit?Why must I consult my physician when changing my diet and such?Protect them from Lawsuits - Called a disclaimer
Why must I consult my physician when changing my diet and such?
because it is the safest thing to do if you have other health issues
Why must I consult my physician when changing my diet and such?
so they won't get sued by jackasses it case they hurt themselves. It's like a %26quot;caution hot coffee%26quot; sign.