Every time I read a magazine or walk down the aisles of the supermarket, I see packages, advertisements and promotions trying to lure consumers into living a better life. I looked into a few of these latest health pitches in order to uncover whether the claims meet our expectations.

Hershey's Reserve: Is it better than regular chocolate?

This chocolate comes in a variety of styles; however, I was most captivated by the fancy tin container at my supermarket checkout line. Each tin contains six truffles in 65 percent cacao (dark chocolate) or 35 percent cacao (milk chocolate), at 50 calories per candy.

Eating...