Quick Take
A social media post suggest that applying mustard oil and ghee on the tongue can detox the body. We fact checked and found the claim to be false.
The Claim
An Instagram post suggests that mixing one drop of mustard oil with one drop of ghee and rubbing it on the side of the tongue can remove toxins and detoxify the body.
Fact Check
Can the tongue really remove toxins from the body?
No. The tongue is not a detoxifying organ, and there is no biological mechanism through which it can extract toxins from the body. To understand why this claim falls apart, one needs to look at how detoxification actually works.
The human body is equipped with a highly coordinated detoxification system, primarily driven by the liver and kidneys. The liver plays a central role in metabolising potentially harmful substances, whether they come from food, medicines, environmental exposure, or internal metabolic processes. It converts fat-soluble compounds into water-soluble forms through enzymatic reactions (commonly referred to as Phase I and Phase II detoxification), making them easier to eliminate. The kidneys then filter these substances from the blood and excrete them via urine. Alongside this, the gastrointestinal tract helps eliminate waste through faeces, and the lungs remove volatile substances through exhalation.
The tongue, on the other hand, is structurally and functionally designed for entirely different purposes, taste perception, mechanical manipulation of food, and aiding speech. It contains taste buds, salivary glands, and a rich nerve supply, but it does not connect to the bloodstream in a way that allows it to filter or remove toxins. There is no pathway, anatomical, physiological, or biochemical, through which rubbing a substance on the tongue can influence systemic detoxification.
The idea likely arises from the fact that the tongue is sensitive and reactive. When a pungent substance like mustard oil is applied, it can create a sharp, burning sensation. This sensory response can be mistaken for a “cleansing” action. However, what is being experienced is simply nerve stimulation, not toxin removal.
Dr Mohit Sandhu, an Ayurveda consultant and Kshar Sutra specialist based in Hamirpur, Himachal Pradesh says, “Rubbing a drop of ghee or mustard oil on the tongue has nothing to do with weight loss. This is misinformation being spread by this claimant. In Ayurveda, practices like Gandusha and Kavala (oil holding or pulling) are described mainly for oral hygiene and local benefits. They are not intended to detoxify the entire body through the tongue. In fact, the commonly used concept of “detoxification” does not exist in either Ayurveda or modern medicine in this context.
Is there any scientific evidence supporting this detox claim?
No. There is no clinical, experimental, or biochemical evidence supporting the idea that mustard oil and ghee applied to the tongue can remove toxins from the body.
Scientific validation of a detox method requires measurable outcomes. For example, studies would need to demonstrate a reduction in specific toxins in the bloodstream, improved liver enzyme function, enhanced renal clearance, or changes in biomarkers of oxidative stress. None of these have been demonstrated for this practice.
Instead, what we see is a pattern common to many viral health claims: the use of vague terms like “toxins” without defining what those toxins are, where they are located, or how they are being measured. This ambiguity makes the claim sound convincing while avoiding scientific scrutiny.
Another factor that keeps such claims alive is the sensory feedback they produce. Mustard oil contains compounds like allyl isothiocyanate, which activates pain and heat receptors in the mouth. This creates a strong sensation that can feel like something active or therapeutic is happening. Ghee, being a fat, may coat the tongue and alter its texture temporarily. Together, these sensations can be misinterpreted as evidence of detoxification, when in reality, they are simply local effects with no systemic impact.
Dr Shalin Nagori, Consultant Pathologist and Industrial Physician, “The idea that toxins can be removed through the tongue by applying oils has no basis in human physiology. Detoxification is an internal process regulated by organs like the liver and kidneys. External application of substances on the tongue may create sensations, but it does not translate into systemic detox or toxin clearance.”
Could rubbing mustard oil and ghee on the tongue cause harm?
Maybe. While it may not be dangerous for everyone, it is not entirely without risk, especially when used repeatedly or in individuals with sensitive oral tissues.
Mustard oil contains pungent compounds that can irritate the mucosal lining. For individuals with oral ulcers, inflammation, infections, or conditions like burning mouth syndrome, this could worsen discomfort or delay healing. Repeated irritation may also disrupt the natural protective barrier of the oral mucosa.
Beyond the local effects, there is a more subtle but important risk, the delay or avoidance of proper medical care. When people rely on unproven remedies for symptoms like fatigue, digestive discomfort, or a general feeling of “toxicity”, they may overlook underlying causes such as nutrient deficiencies, hormonal imbalances, infections, or chronic conditions.
Additionally, the belief that the body requires external “detox” interventions can lead to a cycle of dependency on such practices, rather than focusing on evidence-based health behaviours.
What is the correct way to understand “detox”?
Yes, the body already has an efficient detoxification system. Detoxification is not something that needs to be switched on or triggered by external rituals. It is a continuous, tightly regulated process that occurs every second within the body.
The liver uses enzymes to transform harmful compounds into less toxic forms. The kidneys filter blood and remove waste products. The gut eliminates undigested material and metabolic by-products. Even the skin and lungs contribute to minor excretory roles.
Supporting this system does not involve quick fixes. Instead, it relies on maintaining overall health, adequate hydration to support kidney function, sufficient protein intake to aid liver enzyme activity, dietary fibre to support gut health, and avoidance of excessive alcohol or toxins that can overload these systems.
In simple terms, the body does not need a drop of oil on the tongue to detox. It needs consistent, balanced care.
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