The Food and Drug Administration announced Tuesday that milk and meat from cloned animals should not be sold to consumers until it is proven safe.

FDA officials have asked biotech companies to keep the livestock out of the food chain until the National Academy of Sciences completes its review to determine if the food is safe, and that the technology does not harm the environment or animals. One scientific concern helping to drive the review is the question if mass animal cloning could lead to animals that are more susceptible to disease.

The review will be competed early next year and the FDA will receive NAS recommendations at that time. The review process also will determine if cloned animals fall under FDA jurisdiction as a genetically engineered animal, or if like animals bred through in-vitro fertilization, FDA approval is not required.

Associated Press