Hey guys, I couldn't find the exact article I remember reading, but I found a few sources that I am posting. They relate to what I was saying about some vegetables having low levels of toxins so kids may not naturally want to eat them:
http://articles.latimes.com/2007/feb/19/health/he-eat19
"Whatever version of TAS2R38 someone has, it's true to say that many people, young and old, don't like vegetables. In evolutionary terms, that makes some sense. Plants produce natural bitter pesticides to protect themselves from being eaten, and sometimes these substances are toxic. No wonder humans have evolved to instinctively avoid very bitter foods. Luckily, the amounts of these natural toxins found in fruits and vegetables aren't harmful to us. (We're considerably larger than the average garden pest, after all.)"
and also this video,
http://www.pbs.org/wgbh/nova/body/science-picky-eaters.html
Hope these help those who were interested!
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