If livestock eat genetically modified grain, there will be GMOs in meat, milk and eggs.
GMOs have never been detected in milk, meat or eggs derived from animals fed GM feed.
(Ref. U of Cal. GE and Animal Feed)
It has been estimated that over 70 percent of harvested GMO crops are fed to food producing animals, making the world’s livestock populations the largest consumers of the current generation of GMO crops. However, GMOs have never been detected in food derived from animals fed GMO crops.
It’s important to understand that almost all the food that we (or animals) eat contains DNA and proteins. The DNA and proteins found in food, GMO and non-GMO, are processed by the digestive system in our gastrointestinal tract. During digestion, GMO and non-GMO DNA is broken down into the four nucleotides that make up all DNA, and/or into small nucleotide fragments. Similarly, proteins, again GMO and non-GMO, are broken down into one or a few of the 21 amino acids that exist in nature. Many studies have been conducted on the potential for GMO DNA or proteins to be transferred into animal tissue. No intact or immunologically reactive protein or DNA has been detected in animal tissue.
Therefore, as Alison Van Eenennaam, Ph.D., extension specialist in animal genomics and biotechnology at the University of California, Davis, explains, “Genetically engineered crops are digested by animals in the same way as conventional crops. Evidence to date strongly suggests that feeding livestock with genetically engineered crops is equivalent to feeding unmodified feed sources in terms of nutrient composition, digestibility and feeding value.” Additionally, Dr. Van Eenennaam states, “Genetically engineered DNA, or the novel proteins encoded therein, have never been detected in the milk, meat or eggs derived from animals fed genetically engineered feedstuffs. Several studies have documented that small fragments of plant-derived, but not genetically engineered, DNA can pass into the tissues of animals that consume the plants.”