Originally Posted by
shawmutt
It's the naturalistic fallacy. Just because food is more "natural" doesn't make it "better". Although fig newtons is a strange example of "real food".
+1
There's plenty of stuff in "natural" food that, in isolation, is toxic and/or carcinogenic. Solanine (potatoes and others from the Solanum family), aflatoxin (peanuts), and caffeic acid (tomatoes) come to mind.
Of course, diet is too complex for us to fully know how any one substance interacts with others, but these examples have definite negative effects on human health.