Propane grilling better for you than charcoal

Men's Health - Is it healthier to grill with propane or charcoal?

This quick little bit runs down the reasons to grill with propane rather than charcoal. In short, charcoals get hotter than propane, which means that fat drippings onto charcoal cause more flare ups of smoke and fire. The fire chars the meat, and the char is a known carcinogen. The smoke is also carcinogenic, and as the smoke hits the meat it covers the meat in the carcinogen. Of course both smoke and char occur in propane grills too, but scientists have found them to a greater extent on charcoal-cooked meat. In short, if you're going to grill, avoid flare ups and char by trimming fat and marinate, which reduces the char on meat by 90%.