The Catholic Church once 'outlawed' chocolate.   "In the 1600’s, chocolate was thought to be a powerful aphrodisiac, inflaming lustful passion.  So much so that religious leaders banned monks and nuns from ingesting it."

The Church has lost membership ever since.  

Cacao beans are a natural drug.  They contain up to 2.2 percent phenylethylamine, the ‘love and sex’ chemical.  Cacao beans contain other compounds that enhance mood, joy, creativity and imagination.  

 Research at West Virginia’s Wheeling Jesuit University suggests that chocolate may boost your memory, lengthen your attention span, shorten your reaction time and strengthen your problem-solving skills as it increases blood flow to the brain.
 
http://www.wju.edu/about/adm_news_story.asp?iNewsID=2043

I can understand why you want to ban this evil substance.