We grow only heirloom and open pollinated seeds. Almost all fruit and vegetables we consume come from our home garden or organic sources. We avoid proccessed food except as treats.
I found it interesting that the guest lecturer we had in class stated that obesity can be helped with transgenetic foods because food will taste better. I have no issue with the way my heirlooms tastwey taste. They amazing without lab conditions. It is also interesting to note that scome scientists are working to make transgenetic tomatoes taste more like heirloom, which nullifies the flavor argument. http://www.science20.com/news_articles/genetic_discovery_could_make_more_tomatoes_taste_heirlooms-91508
I think the obesity issue is one of upbringing, not flavor. After all, my 14-month old child prefers raw beans and peas to candy.
I also have issues eating crops that are killed off by pretty hard core chemicals, ie Round-up ready crops. I don't feel enough unbiased research has been done of the long term effects of eating transgenetic foods. Below is one study I did find.
http://research.sustainablefoodtrust.org/wp-content/uploads/2012/09/Final-Paper.pdf
Rice cowpeas, Italian Peppers, Japanese Cucumbers (that taste like watermelon), and Okra
My 14-month old son enjoying a frshly harvested purple carrot.