there is no apparent difference between a GE food and its natural
counterpart, it is assumed to be safe according to present regulations.
Only a limited set of characteristics needs to be compared. If
this testing reveals no difference, the GE food is considered
to be 'substantially equivalent'. Then no testing is required
to make sure there are no harmful substances present which could
appear unexpectedly due to GE. To be fair, traditional cross breeding
can produce food crops which contain unexpected toxins too so
new varieties of food plant need to be tested whether produced
by GE or by traditional
For more on this, visit PSRAST
(Physicians and Scientists for the Responsible Application of
Science and Technology).