This is pretty safe and true for anything but mushrooms. I have been doing it for years with good results.
I just had a family member poisoned by mushrooms so have been doing lots of research. There are actually mushroom which can be deadly that don't cause any symptoms for 3-30 days. So what happens is you wind up eating them for day and days in a row because there are no symptoms then the toxins build up in your body and you die.