Margarine is worse than spanking.

First, we were told that spanking a kid will lower it's IQ by a whopping 2.8 points.

Then we found out that simply having a second child will force a 2 point IQ drop.

Now, we learn that reputable scientists have removed spanking from the top of the LIST OF DANGERS TO CHILDRENS IQ and replaced it with...margarine.

Margarine merits a full 3 point drop.

Of course, I'm sure the "scientists" didn't control for the fact that parents who would feed a kid margarine are probably a few IQ points short of a Mensa membership themselves.