@yerrag I only refer to the chemical tendency to burn where the triglycerides can form small byproduct molecules like the toxic fragment, acrolein.
But I’m sure a small amount of such a chemical is benign considering it is formed in other behaviors like smoking. Better to just enjoy and not be a hypochondriac about such things I think.
Dr Peat once said that caramel contains very toxic molecular fragments but he would never stop eating it. If you enjoy it enough, the pleasure you feel will outweigh the negative effect of some obscure chemical reaction we are worried about.