In 1988 alone, chocolate was scientifically accused of causing itching, causing migraines, and causing indigestion. In 1989, science found that the fat from cocoa butter is good for you, but since most chocolate also has milkfat in it, it's bad! And a 1990 article called "New Insights on Why Some Children Are Fat" continued the chocophobic trend, with a Dr. Stunkard noting that "no one binges on hard candies, which are pure sweetness...ice cream and chocolate are more often the villains."
Harsh words. And things weren't getting any better. In 1992, science found that chocolate makes you fatter than alcohol if you're an alcoholic (but failed to mention if the inverse holds true for chocoholics), and followed up in 1993 with the painful finding that a chemical found in chocolate might give you kidney stones.
But soft! What light through yonder science breaks? It is 1996, the year that things started looking up for chocolate again! First, science found that chocolate definitely does NOT cause acne outbreaks (though it can still get stuck in your braces). Then, in what might be the best chocolate-related study of all time, science also discovered that chocolate could be used not only as a shock absorber in cars but as a quick way to fill potholes.