For those of you who would like more information on the French GMO rat feeding study by Seralini et al, please read Emily Willingham’s critique of the study. It is by far the most comprehensive summary I have read. Emily is on twitter at @ejwillingham. An excerpt:
The possible explanations are legion, but with several different kinds of estrogen receptors with different actions in different tissues, compounds that block a receptor at one concentration but activate it at another, compounds that interact with different kinds of hormone receptors in different ways, and differential effects in different species–it’s no wonder the results with mixtures are themselves so mixed. The one thing that doesn’t leap out here as being involved, among a sea of likely possibilities, is the GM corn itself.