The Hippies said, "You Are What You Eat."

Today your DNA is being inadvertently altered by horizontal means, your diet.

GMO foods are changing you....

http://www.collective-evolution.com/2014/01/09/confirmed-dna-from-genetically-modified-crops-can-be-transferred-to-humans-who-eat-them-2/

But to what extent remains to be seen.

http://www.infowars.com/food-fight-congress-consumers-battle-over-gmos/