Health problems: The process often mixes or adds proteins that don’t exist in the original plant. Those against GMO worry that foods made to resist disease and viruses will linger in your system after you eat them, causing you immune system to be weakened But no studies confirm this claim.

"Frankenfood" fears: The long-term effects of adding new genes to common crops are still unclear. While the industry and health leaders cite hundreds of studies to support its safety, there have been studies on animals with highly negative results. bad effects on animals, like harm to the kidneys, liver, heart, or other organs, should carry more weight.

Top concerns about GMOs include: