One of the latest fads at the moment is foods or products which contain activated charcoal. Just to satisfy my curiosity, I purchased from a Chinese Ebay store, some charcoal toothpaste which claims to whiten teeth naturally. I can confirm that it does actually work. After a month of use my teeth definitely look a shade whiter. However, if you are brushing your teeth in a hurry, which I tend to do, there is the risk that you can get black stains on your clothing and around your bathroom. I am therefore not a convert, but would recommend it to those of you who prefer natural over chemical products.
I am however a fan of charcoal in food. My favourite has been the Gourmet Charcoal Cheeseburger which I had the pleasure of indulging in whilst on vacation in Bali. This healthy Jap Bamboo charcoal black bun was the most delicious, melt-in-your-mouth burger I have ever tasted. If ever you go to Bali, be sure to visit Wahrung Bali at the Seminyak Village mall.
For more information on the benefits and uses of activated charcoal, check out this article here