I am seeing a lot of show and documentaries on the ill effects of gmo seeds. I would like to know how do you tell which seed producers are non gmo, other than the ones that state organically produced?
You, as a consumer, are not going to be purchasing any GMO seed. GMO seed does not come in a packet. Purchasing GMO seed generally requires a signed agreement with the seed company.
Long story short: Don't worry about it.
See RareSeeds.com (Baker Creek Seeds).
If you plant heirlooms, you can save seeds, in most cases. Some are more difficult than others.