Unacceptable Ingredients?

This article in Slate.com, “Unacceptable Ingredients”

How many of the groceries sold at Walmart would be banned by Whole Foods?

indicates that Whole foods has a list of unacceptable ingredients that Walmart still allows. Whole Foods isn't perfect, however. They've been slow to get on the non-GMO bandwagon, but have recently committed to it. So, their list of unacceptable ingredients does not yet include genetically modified organisms. 

I would be surprised if all Whole Foods products for sale on their shelves really adhere to these standards (it's pretty easy to find methylparaben, for example, even in the highest quality lotions and cosmetics. See this post on "Philosophy" brand: http://americadontbuyit.blogspot.com/2007/03/sugar-coated-philosophy.html)