Is a detox programme a useful thing to do, or a sign that you should walk away?

Mark HymanMD · family physician · functional medicine

A short, structured, food-based reset is one of the most useful things most people can do

What it rests onA cumulative-load argument. He accepts that the liver, kidneys, gut, skin and lungs already detoxify, and argues that modern exposure plus stress, poor sleep, nutrient gaps and inflammation can outpace that capacity. The programme itself is a 7-day taper, 10 days without sugar, refined starch, industrial fats, artificial ingredients, caffeine and alcohol with unlimited low-starch vegetables, protein and healthy fats, then a structured 4-day reintroduction. Sold at $67, $267 and $297, with the top tier HSA/FSA eligible. The outcome figure is participant self-report on the Medical Symptom Questionnaire with no comparison group.

Timothy CaulfieldProfessor of health law and science policy, University of Alberta; Canada Research Chair 2002 to 2023

The word is the tell; when a clinician uses it, stop there

What it rests onA vocabulary heuristic backed by a negative empirical claim: detox and cleanse have no clinical referent, the body's own organs do the work, and a provider reaching for the terms is signalling the register they are operating in rather than describing a mechanism. Recorded here as cau-detoxflag, with the underlying negative claim separately as cau-nocleanse.