Yeah, nutrition is listed as one of the causes for the flynn effect: https://en.wikipedia.org/wiki/Flynn_effect https://en.wikipedia.org/wiki/Flynn_effect The

Yeah, nutrition is listed as one of the causes for the flynn effect: https://en.wikipedia.org/wiki/Flynn_effect https://en.wikipedia.org/wiki/Flynn_effect The flynn effect has slowed down in the western world. This highly suggests not genetic changes but genetic potential being fulfilled thanks to environmental improvements.