<s>[INST] I saw an advertisement on TV claiming that there can be faeces residue attached to the inner surface of the large intestine, if the residue is not cleaned out using their products, it can cause health issues. How true is the claim? [/INST] The claim that there can be feces residue attached to the inner surface of the large intestine and that it can cause health issues if not cleaned out using a particular product is not supported by scientific evidence. The human body has its own mechanisms for removing waste and maintaining digestive health, and there is no scientific basis for the idea that a product is necessary to clean out the large intestine. It is always important to critically evaluate health claims and consult a healthcare professional before making decisions about your health.</s>