Tomatoes: In 1994, genetically modified Flavr Savr tomatoes became the first commercially produced GMOs. They were brought out of production just a few years later, in 1997, due to problems with flavor and ability to hold up in shipping. There are no genetically engineered tomatoes in commercial production, and tomatoes are considered “low-risk” by the Non-GMO Project Standard.
Potatoes: Genetically modified NewLeaf potatoes were introduced by Monsanto in 1996. Due to consumer rejection by several fast-food chains and chip makers, the product was never successful and was discontinued in the spring of 2001. There are currently no commercial GMO potatoes on the market.
Salmon: A company called AquaBounty is currently petitioning the FDA to approve its genetically engineered variety of salmon, which has met with fierce consumer resistance. Find out more here.
Pigs: A genetically engineered variety of pig, called Enviropig was developed by scientists at the University of Guelph, with research starting in 1995 and government approval sought beginning in 2009. In 2012 the University announced an end to the Enviropig program, and the pigs themselves were euthanized in June 2012.