So, should people wanting to lose weight try to avoid PFAS? That would be difficult, and we don't know whether it would help. We don't know what levels of PFAS chemicals people in the UK have in their bodies. We don't know whether using non-stick cookware, or avoiding food packaging made using PFAS chemicals, would reduce PFAS levels in the body. Without this information, attempting to avoid PFAS chemicals does not seem practical or advisable.