Just googled Mesquite and found a ton of info. Here's one brief explanation -
"CAUTION: Smoked foods smoked foods contain polycyclic aromatic hydrocarbons which are known carcinogens. Smoked foods are known to be carcinogenic when eaten as a regular part of a person's diet. Most people do not eat enough smoked foods for this to be a major concern. HOWEVER, the hotter the wood or charcoal burns, the more polycyclic aromatic hydrocarbons that are produced. And mesquite burns hotter than hardwood charcoal, and produces much more of these dangerous hydrocarbons. One study found 8 times the cancer causing polycyclic aromatic hydrocarbons in meat cooked with mesquite than hardwood charcoal, and 40 times the benzopyrene, the most dangerous hydrocarbon."
Twisted Brisket BBQ Team
20"x24" Disposable Cutting Boards on a Perforated Roll