Fun fact: If you're going to grill meats, marinating meats for hours beforehand in liquid mixtures that contain rosemary and other herbs / spices can dramatically help to reduce HCA's (heterocyclic amines), which are carcinogenic compounds that can form when meats are grilled. (truthaboutabs.com)
There's plenty of evidence that charred food is carcinogenic and that overcooking diminishes nutritional value. (mindbodygreen.com)
The black, charred parts of meat are carcinogenic and should be cut off before eating, if possible. (greatfoodlifestyle.com)