Yes, activated charcoal is even making its way into frozen treats, but how factual are claims of its health benefits? AdvertisementAdvertisementYou'll find activated charcoal in water filters, toothpastes and facial cleansers, where it does trap pollutants. A small, 50-gram dose of activated charcoal has the surface area of about seven football fields. Adding activated charcoal to food and drink for frequent use could actually cause nutritional issues because it indiscriminately absorbs vitamins and minerals, too. \"Activated charcoal doesn't decipher between toxins and good nutrients, so taking it too regularly or with food means that the charcoal will also absorb the nutrients in your system,\" nutritionist Pip Reed told The Huffington Post.