Dark chocolate may be giving your brain, immune system and eyes a real boost. ... Researchers used dark chocolate with 70 percent cacao, a recipe reserved for the darkest of dark chocolate.

For example, dark chocolate with 70% to 85% cocoa solids can have 22.7 milligrams of caffeine per ounce, while milk chocolate ...

Arguably one of the world's most beloved foods, chocolate comes in three main varieties: dark, milk and white – although white "chocolate" does not actually contain cocoa products and is a bit ...