Sarson Tel (Mustard Oil)

Brassica juncea
Sarson Tel (Mustard Oil) is a pungent oil, widely used in Ayurveda and prevalent in South Asian cuisine. It's claimed to potentially increase Vata and Pitta doshas while decreasing Kapha. Traditionally, it's supposedly beneficial for external applications like massage, and for its warming properties, making it a common household item.
PLANT FAMILY
Brassicaceae (Mustard)
PARTS USED
Seeds, oil
AYURVEDIC ACTION
Vata ↑, Pitta ↑, Kapha ↓
ACTIVE COMPOUNDS
Allyl isothiocyanate (0.5-1%)

What is Sarson Tel (Mustard Oil)?

Sarson Tel, commonly known as Mustard Oil, is a fatty vegetable oil derived from the seeds of the mustard plant (Brassica juncea). It is widely used in various cuisines, particularly in South Asia, and is characterized by its pungent aroma and strong flavor. The oil is typically produced through cold-pressing or distillation of the mustard seeds.

Beyond its culinary applications, Mustard Oil has also been historically used in traditional medicine systems and for massage, owing to its distinct properties. Its primary active compound is allyl isothiocyanate, which contributes to its unique sensory profile.

Other Names of Mustard Oil

  • Mustard Seed Oil
  • Sarson Ka Tail
  • Colza Oil (referring to a type of rapeseed oil, often confused with mustard oil)
  • Canola Oil (a refined form of rapeseed oil, distinct from traditional mustard oil)
Gat-gimchi

Benefits of Sarson Tel (Mustard Oil)

Heading

<h3> Absolute Contraindications of Sarson Tel (Mustard Oil) </h3> <h4> Newborns / Preterm infants (when used as routine massage oil)</h4> <ul> <li>🍼</li> <li>Recommendation: Avoid routine whole-body mustard-oil massage for very young and especially preterm infants; use gentle, non-irritant oils (e.g., sunflower oil) or consult a pediatrician. </li> <li>Reasoning: Clinical observational data show mustard oil massage is associated with increased erythema, rash and higher transepidermal water loss in the first weeks of life, indicating impaired skin barrier and higher risk of irritation or infection in fragile neonatal skin.</li> <li>Scientific_Study_Title: Indicators of skin barrier integrity among newborns massaged with mustard oil in rural Nepal</li> <li>Scientific_Study_Authors: A Summers, M O Visscher, S K Khatry, J B Sherchand, S C LeClerq, J Katz, J M Tielsch, L C Mullany</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/29120456/</li> <li>Scientific_Study_Excerpt: <p>In a cohort of 500 neonates receiving routine mustard oil massage, researchers measured erythema, rash, skin pH, stratum corneum protein and transepidermal water loss at multiple time points. The study found that erythema and rash increased during weeks 1-2, and transepidermal water loss rose by day 28; premature infants showed higher measures of impaired barrier. Authors concluded that mustard oil was associated with worsened early skin integrity in this setting and urged caution for vulnerable newborns.</p> </li> </ul> <h4> Known mustard allergy / IgE-mediated hypersensitivity </h4> <ul> <li>⚠️</li> <li>Recommendation: Do not ingest or apply mustard oil if you have a confirmed mustard allergy; carry emergency treatment (as advised) and avoid exposure to mustard-containing products. </li> <li>Reasoning: Mustard is a recognized allergen that can cause systemic reactions, including anaphylaxis; exposure by ingestion or skin contact can provoke severe immune responses in sensitized individuals.</li> <li>Scientific_Study_Title: Mustard allergy confirmed by double-blind placebo-controlled food challenges: clinical features and cross-reactivity with mugwort pollen and plant-derived foods</li> <li>Scientific_Study_Authors: E Ballmer-Weber, C Wüthrich, et al. (listed in PubMed entry)</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/15575930/</li> <li>Scientific_Study_Excerpt: <p>Double-blind food challenges and clinical testing in a group of patients with suspected mustard allergy showed that mustard can provoke systemic allergic reactions, with a notable proportion experiencing severe responses. The study documents clinical features, cross-reactivity patterns (e.g., with mugwort pollen) and highlights the risk of systemic reactions including anaphylaxis in sensitized people.</p> </li> </ul> <h4> Significant pre-existing cardiomyopathy or when advised to avoid high-erucic-acid diets </h4> <ul> <li>❤️‍🩹</li> <li>Recommendation: Patients with established cardiomyopathy, unexplained heart muscle disease, or those under specialist advice to avoid erucic acid should not use mustard oil as a dietary oil without cardiology/nutrition guidance.</li> <li>Reasoning: Animal studies have demonstrated that diets high in erucic acid (a common constituent of expressed mustard oil) produce myocardial lipid accumulation and, with prolonged exposure, focal myocardial degeneration; regulatory bodies have historically limited erucic acid in edible oils because of these findings.</li> <li>Scientific_Study_Title: Cardiac lesions in rats fed rapeseed oils</li> <li>Scientific_Study_Authors: E L Matthaei, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/1170010/</li> <li>Scientific_Study_Excerpt: <p>Weanling rats fed rapeseed oils with differing erucic acid levels developed transient myocardial lipidosis rapidly and, with longer feeding, focal myocardial necrosis and fibrosis-effects that correlated with erucic acid concentration. Peak lipid accumulation occurred within days and some degenerative changes appeared after months of high-erucic feeding, supporting caution about high dietary erucic acid exposure.</p> </li> </ul> <h4> Application to actively inflamed, broken or ulcerated skin (open wounds)</h4> <ul> <li>🩸</li> <li>Recommendation: Do not apply mustard oil to open wounds or active skin ulcers-choose sterile dressings and consult healthcare for wound care.</li> <li>Reasoning: Mustard oil (and its pungent constituents) provokes neurogenic vasodilation and plasma extravasation; applying a known irritant to broken skin can increase inflammation, pain and fluid leakage, delaying healing or worsening inflammation.</li> <li>Scientific_Study_Title: Mustard oil-induced cutaneous inflammation in the pig</li> <li>Scientific_Study_Authors: M H Helme, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/8285137/</li> <li>Scientific_Study_Excerpt: <p>Topical application of mustard oil on porcine skin produced a marked flare response, albumin extravasation and histological evidence of microvascular changes-demonstrating a robust cutaneous inflammatory reaction. The work supports that mustard oil directly causes local inflammatory fluid leakage and vascular changes after topical exposure.</p> </li> </ul> <h3> Relative Contraindications of Sarson Tel (Mustard Oil) </h3> <h4> Pregnancy (oral use / high intake)</h4> <ul> <li>🤰</li> <li>Recommendation: Avoid high dietary intake of expressed mustard oil during pregnancy; if culturally used for cooking, consult an obstetric provider about safer oil choices or regulated low-erucic alternatives.</li> <li>Reasoning: Animal experiments explored erucic-acid feeding during pregnancy with mixed results; although gross morphological abnormalities were not always found, there is limited human safety data and prudence is advised because of experimental concerns about lipid accumulation and metabolic effects.</li> <li>Scientific_Study_Title: Is dietary erucic acid hepatotoxic in pregnancy? An experimental study in rats and hamsters</li> <li>Scientific_Study_Authors: R J Midtvedt, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/7737644/</li> <li>Scientific_Study_Excerpt: <p>In prolonged feeding experiments with high-erucic rapeseed oil in pregnant rats and hamsters, researchers found no major morphologic liver, heart, kidney or adrenal abnormalities at term, though animals receiving the oil gained less weight and fat deposits reflected dietary fatty-acid composition. The data are limited and animal-only, prompting caution for human pregnancy pending more direct safety data.</p> </li> </ul> <h4> Pre-existing eczema / compromised skin (when used topically)</h4> <ul> <li>🧴</li> <li>Recommendation: Use non-irritant emollients (sunflower oil or prescribed ointments) rather than mustard oil on atopic or eczematous skin; if topical mustard oil causes burning or worsening rash, stop and seek dermatology advice.</li> <li>Reasoning: Experimental models and comparative studies show mustard oil delays barrier recovery and causes adverse ultrastructural skin changes, suggesting it can worsen barrier dysfunction and inflammation in already compromised skin.</li> <li>Scientific_Study_Title: Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries</li> <li>Scientific_Study_Authors: K Varnam, et al. (and colleagues; see PubMed entry)</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/12113324/</li> <li>Scientific_Study_Excerpt: <p>In murine skin models, sunflower oil improved barrier recovery, while mustard, olive and soybean oils delayed recovery and produced ultrastructural keratin and mitochondrial changes after a single application; repeated mustard-oil applications sustained barrier delay-findings that raise concern about using mustard oil on already fragile skin.</p> </li> </ul> <h4> Use in young children (dietary ingestion concerns)</h4> <ul> <li>👶</li> <li>Recommendation: Limit or avoid routine dietary mustard oil for young children unless using low-erucic, regulated products; discuss with a pediatrician regarding safe edible oils.</li> <li>Reasoning: Mustard oils can contain high and variable erucic-acid levels; because children have lower body mass and developing metabolism, the relative exposure risk from erucic acid is higher and intake can exceed tolerable daily limits in some preparations.</li> <li>Scientific_Study_Title: Various concentrations of erucic acid in mustard oil and mustard</li> <li>Scientific_Study_Authors: C Wendlinger, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/24491745/</li> <li>Scientific_Study_Excerpt: <p>Analysis of commercial mustard oils and prepared mustard products revealed wide ranges of erucic acid (0.3%-50.8% in samples), with some servings exceeding tolerable daily intake thresholds. The variability indicates a potential for high erucic exposure from typical servings, which is particularly relevant for children with smaller body size.</p> </li> </ul>

Heading

<h4> Skin irritation, burning, contact dermatitis </h4> <ul> <li>🔥</li> <li>Side effect summary: Topical exposure to mustard oil (or mustard essential-oil constituents) commonly causes burning, redness, and can trigger allergic contact dermatitis in sensitized people.</li> <li>Recommendation: For mild irritation, stop use and rinse; for persistent or spreading rash, seek dermatology care. If breathing difficulty, treat as an emergency (possible anaphylaxis). </li> <li>Reasoning: Allyl isothiocyanate and similar compounds activate sensory nerve endings and provoke neurogenic inflammation; patch testing and case reports document allergic contact dermatitis after mustard-oil topical use.</li> <li>Severity Level: Moderate</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Title: Pityriasis rosea-like eruptions due to mustard oil application</li> <li>Scientific_Study_Authors: N Kothiwala, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/16394442/</li> <li>Scientific_Study_Excerpt: <p>Case report: A man developed widespread skin eruptions resembling pityriasis rosea after using mustard oil for massage; patch testing confirmed contact hypersensitivity to mustard oil and lesions resolved after stopping exposure. The authors highlight that topical mustard oil can be an occupational or domestic sensitizer and recommend careful history-taking to identify contactants.</p> </li> </ul> <h4> Worsening skin barrier and increased transepidermal water loss (notably in neonates)</h4> <ul> <li>💧</li> <li>Side effect summary: Routine mustard-oil massage in neonates was associated with increased rash, erythema and higher transepidermal water loss-signs of impaired barrier function.</li> <li>Recommendation: Avoid routine mustard-oil massage in newborns, especially preterm; use oils shown to support barrier (like sunflower) or follow local neonatal care guidance and pediatric advice.</li> <li>Reasoning: Repeated topical application in studies delayed barrier recovery and produced adverse changes in skin ultrastructure; immature neonatal skin is particularly vulnerable to irritant oils.</li> <li>Severity Level: Moderate</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Title: Indicators of skin barrier integrity among newborns massaged with mustard oil in rural Nepal</li> <li>Scientific_Study_Authors: A Summers, M O Visscher, S K Khatry, J B Sherchand, S C LeClerq, J Katz, J M Tielsch, L C Mullany</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/29120456/</li> <li>Scientific_Study_Excerpt: <p>In a longitudinal observational study of 500 neonates receiving routine mustard oil massage, measures of skin condition (erythema, rash) worsened in the first two weeks and transepidermal water loss increased by day 28. Premature infants showed higher measures of impaired barrier, supporting the conclusion that mustard oil can negatively affect neonatal skin integrity when used routinely.</p> </li> </ul> <h4> Systemic allergic reactions including anaphylaxis (after ingestion or contact in sensitized people)</h4> <ul> <li>🚨</li> <li>Side effect summary: Mustard can trigger IgE-mediated reactions ranging from hives to life-threatening anaphylaxis in sensitized individuals; even small exposures can provoke severe responses.</li> <li>Recommendation: If known allergy exists, strictly avoid mustard products (including oils where relevant), carry prescribed emergency medication (e.g., epinephrine) and seek allergy specialist input for testing and action plans.</li> <li>Reasoning: Clinical series and challenge studies document systemic reactions and anaphylaxis in a subset of mustard-allergic patients; cross-reactivity with certain pollens and plants is common.</li> <li>Severity Level: Severe</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Title: Mustard allergy confirmed by double-blind placebo-controlled food challenges: clinical features and cross-reactivity with mugwort pollen and plant-derived foods</li> <li>Scientific_Study_Authors: E Ballmer-Weber, A Skidmore, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/15575930/</li> <li>Scientific_Study_Excerpt: <p>Controlled food-challenge data in patients with suspected mustard allergy demonstrated that a substantial fraction experienced systemic reactions, and a proportion had anaphylaxis. The study characterized cross-reactivity patterns and reinforced that mustard is a clinically important allergen capable of causing severe, sometimes life-threatening responses.</p> </li> </ul> <h4> Potential cardiac/lipid effects with chronic high oral intake (erucic-acid related)</h4> <ul> <li>🫀</li> <li>Side effect summary: Long-term high intake of high-erucic mustard or rapeseed oils in animal studies produced myocardial lipid accumulation and, with sustained exposure, focal degenerative changes.</li> <li>Recommendation: Avoid chronic high dietary intake of expressed mustard oils with high erucic content; choose low-erucic, regulated edible oils or follow dietary guidance from health professionals.</li> <li>Reasoning: Experimental feeding studies link erucic acid to transient myocardial lipidosis and later focal myocardial degeneration in rodents; regulatory caution and intake limits reflect these findings.</li> <li>Severity Level: Moderate</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Title: Induction of a reversible cardiac lipidosis by a dietary long-chain fatty acid (erucic acid). Relationship to lipid accumulation in border zones of myocardial infarcts</li> <li>Scientific_Study_Authors: A J Dannenberg, C H Brooks, et al.</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/6859230/</li> <li>Scientific_Study_Excerpt: <p>Rats fed diets high in erucic acid showed rapid accumulation of neutral lipid in cardiac myocytes and increased long-chain acyl CoA levels; while early lipidosis could be reversible, continued dietary exposure for months was associated with focal myocardial degeneration. The work provides experimental basis for caution about sustained high erucic-acid consumption.</p> </li> </ul>

Heading

<h4> Anticoagulants / Antiplatelet agents (e.g., warfarin, aspirin)</h4> <ul> <li>Interaction_Details: Animal feeding studies have shown that certain mustard/rapeseed oils can alter platelet aggregability and oxidative markers; while direct human drug-interaction trials are limited, these effects suggest a theoretical interaction risk with blood-thinning medications.</li> <li>Severity: Moderate</li> <li>Recommendation: If you take anticoagulants or antiplatelet drugs, consult your prescriber before adding significant amounts of expressed mustard oil to the diet; monitor clinically and by laboratory tests as advised.</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/7790693/</li> <li>Scientific_Study_Title: Dietary mustard, rape seed oils and selenium exert distinct effects on serum Se, lipids, peroxidation products and platelet aggregability</li> <li>Scientfic_Study_Authors: J R Beattie, P J Triggs, et al.</li> <li>Scientific_Study_Excerpt: <p>In an eight-week rat feeding study comparing mustard, high-erucic and low-erucic rape seed oils and corn oil (with/without selenium supplementation), investigators found differences in serum lipids, oxidative markers and platelet aggregability across oil types. The study noted cardiac pathology assessments and suggested that high-erucic oils may exert pro-oxidant or platelet-modifying effects; extrapolation to humans warrants caution when combining such oils with anticoagulant or antiplatelet therapy.</p> </li> </ul> <h4> Topical TRPA1/TRPV1-acting agents and topical analgesics (e.g., capsaicin, strong irritant topical preparations)</h4> <ul> <li>Interaction_Details: Mustard-oil components (allyl isothiocyanate) activate sensory pathways and produce local neurogenic inflammation; using mustard oil together with other topical irritants or sensitizing medicated rubs can increase burning, irritation and inflammation.</li> <li>Severity: Mild</li> <li>Recommendation: Avoid simultaneous use of mustard oil with other strong topical irritants or medicated rubs; test a small skin area first and stop if excessive burning occurs. Consult a clinician for guidance when combining topical treatments.</li> <li>Scientific_Study_Available: Yes</li> <li>Scientific_Study_Link: https://pubmed.ncbi.nlm.nih.gov/28614189/</li> <li>Scientific_Study_Title: Dose-response study of topical allyl isothiocyanate (mustard oil) as a human surrogate model of pain, hyperalgesia, and neurogenic inflammation</li> <li>Scientfic_Study_Authors: Andersen HH, Elberling J, Lo Vecchio S, Arendt-Nielsen L</li> <li>Scientific_Study_Excerpt: <p>In healthy volunteers, graded concentrations of allyl isothiocyanate applied topically produced dose-dependent burning pain, mechanical and thermal hyperalgesia and prolonged inflammatory changes measurable by perfusion imaging. The findings show that mustard-oil components are potent topical sensory activators, and co-application with other topical agents that sensitize nerves or skin may amplify irritation and inflammatory responses.</p> </li> </ul> <h4> No well-documented pharmacokinetic interactions with common oral prescription drugs (e.g., CYP-mediated interactions) - evidence insufficient</h4> <ul> <li>Interaction_Details: A systematic search did not identify robust human pharmacokinetic studies demonstrating clinically meaningful CYP450 or transporter drug interactions from typical culinary or topical use of expressed mustard oil; essential-oil constituents may have enzyme effects in vitro but human data are lacking.</li> <li>Severity: Mild</li> <li>Recommendation: If you take medicines with narrow therapeutic windows, discuss any planned increased dietary or topical use of mustard oil with your clinician; stop use if unexpected effects occur.</li> <li>Scientific_Study_Available: NA</li> <li>Scientific_Study_Link: NA</li> <li>Scientific_Study_Title: NA</li> <li>Scientfic_Study_Authors: NA</li> <li>Scientific_Study_Excerpt: <p>At present, direct human drug-interaction studies for mustard oil and common prescription medicines are limited or absent. Laboratory and animal data show biological activity of mustard compounds, but the translation to clinically relevant pharmacokinetic interactions in humans has not been established; absence of evidence is not evidence of absence.</p> </li> </ul>