ontgifting

Ontgifting, in Dutch, refers to detoxification—the process of removing toxins or poisons from living organisms or the environment. In medicine, detoxification describes the physiological or medical steps by which the body eliminates toxic substances, often focusing on the liver and kidneys. The liver metabolizes toxins through Phase I reactions (functionalization) and Phase II reactions (conjugation), producing more water-soluble metabolites excreted in urine or bile. Other organs, including the kidneys, lungs, skin, and gastrointestinal tract, contribute to detoxification.

In clinical practice, detoxification may describe medically supervised withdrawal and stabilization for substance dependence, sometimes involving medications and monitoring. It is distinct from longer-term rehabilitation or treatment for substance use disorders.

In environmental science, ontgifting can refer to detoxification of contaminated media, using methods such as bioremediation (microbial degradation), phytoremediation (plants), chemical oxidation, adsorption (activated carbon), or physical removal. The aim is to reduce toxicity and prevent exposure to people and ecosystems.

Contemporary claims that specific “detox diets,” supplements, or cleansing routines reliably purify the body are not supported by robust evidence. General health measures—adequate hydration, balanced nutrition, avoiding excessive alcohol, and appropriate medical care for poisoning or substance use disorders—support the body’s natural detoxification systems. The term is used across disciplines with varying methods and evidence bases.