Consuming fiber daily, e.g. psyllium husk, is another way to lower some types of PFAS from the body, although not all types of PFAS are going to mix into bile to facilitate this excretion. The way this works is that some PFAS dissolves in bile which binds to psyllium which is excreted.
Remember, 5g psyllium should be taken with 20 fl oz water, mixed and consumed immediately before it gels. Do not take it two hours before or after any medicine, and do not take it if having swallowing difficulty.