Ban artificially genetically modified foods from your personal diet where possible. It is very difficult to do, because the government has allowed the GMO producing and supplying corporations to mask whether or not the food in question is a GMO. They are not required to divulge the information on their labels. It's evil of course. Organic foods are also more expensive, unfortunately. It's all for the buck to some at the greater expense of the rest.
One way to help to be surer you are not consuming GMO foods is to buy only those that are certified as not including them. This is a place where the greedy and sinful have move government via lobbying and huge campaign donations to make such disclosures illegal. They claim that just by telling people that a product isn't a GMO, it suggests that there is something wrong with GMOs.
Well there is something wrong with them. Read the following linked article.
"Austrian Government Study Confirms Genetically Modified (GM) Crops"
Threaten Human Fertility and Health Safety
Advocates Call for Immediate Ban of All GM Foods and GM Crops
Institute for Responsible Technology
IMMEDIATE RELEASE (November 13, 2008)