Dr. Oz. was attacked from many different fronts after his show exposed the contamination of apple juice with arsenic , http://www.doctoroz.com/videos/arsenic-apple-juice (there are a few interesting links here you may want to surf, Sen. Schumer Calls on the FDA to Regulate Juice Companies, FDA Statement, Current Standards, Research Results…).
A part of this controversy stems from the fact that the apples used to make the juice are grown in China, where food regulation laws are not as stringent, are contaminated as a result of pesticide spraying. I did some research on this and came up with an interesting study conducted by the Chinese Academy of Sciences, www.ncbi.nlm.nih.gov/pubmed/21632110, entitled, “Inorganic Arsenic in Chinese Food and its Cancer Risk”.
Shockingly, I found more information about arsenic in U.S. chickens, http://nutritionfacts.org/blog/2011/09/19/dr-oz-apple-juice-and-arsenic-chicken-may-have-10-times-more/. Apparently chickens ingest the arsenic in the feed they are fed.
Dr. Michael Greger quotes the Centers for Disease Control and the Food and Drug Administration, “Chicken consumption may contribute significant amounts of arsenic to total arsenic exposure of the U.S. population….Levels of arsenic in chicken are so high that other sources may have to be monitored carefully to prevent undue toxic exposure among the population.” Read more at http://nutritionfacts.org/blog/2011/09/19/dr-oz-apple-juice-and-arsenic-chicken-may-have-10-times-more/.