I wanted to make a loaf with nice dark and red color contrast and I think it came out very interesting. Here is a picture of the full loaf:
There's also not evidence that cooking meat over a fire affects cancer risk. It does create compounds that have been shown to increase risk in mice fed 1000x what you or I would eat.
You could do the same thing for practically any compound. Fruit juice will naturally contain a small percentage of ethyl alcohol, a known carcinogen, and we know from many studies that over consumption of ethyl alcohol greatly increases the risk of many cancers.