GMO foods can affect you differently than non-GMO foods. This is particularly true of wheat and soybeans.
They can influence your digestion and pancreas, even causing sensitivities and high blood sugar, even allergic reactions that their non-GMO counterparts do not.
This is because GMOs have had the number of chromosomes they contain increase....that is part of the modification.
The end result can be anaphylaxis, chronic indigestion/diarrhea, diabetes, etc: in short, poor health.
In developing nations whose citizens suffer from poor nutrition, this can be disastrous, especially for growing children.