"As long as the child is your own, never take him to eat barbecue frequently. The greatest harm is not the lack of freshness of the ingredients, not the substitution of duck meat or rat meat, not gutter oil, but the aromatic hydrocarbons added to the barbecue, also known as polycyclic aromatic hydrocarbons. It's okay to satisfy a craving occasionally, but eating it frequently is unimaginably harmful."

This statement sounds harsh, but it's the unvarnished truth that industry insiders have been holding back for a long time.