From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox. Dark chocolate may ... can be part of a healthy diet.

Unfortunately, it also removes some heart-healthy antioxidants ... in about 1 in 100 people. Most brands of dark chocolate contain high levels of heavy metals, such as lead and cadmium.

Narrator But before you gobble up all those chocolates, remember this: being heart healthy doesn't make chocolate any better for your waistline. That's why you should choose a small piece of dark ...