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Does Mustard Fight Inflammation? Unpacking the Science and Benefits

4 min read

For thousands of years, mustard has been used in traditional medicine for its healing properties. Today, research suggests that the humble mustard plant and its seeds contain potent anti-inflammatory compounds that may help fight inflammation and support overall health.

Quick Summary

An exploration of mustard's potential anti-inflammatory effects reveals that bioactive compounds in its seeds, oil, and greens offer health benefits. The article details scientific findings, traditional uses, and practical ways to incorporate mustard into a healthy diet to combat inflammation.

Key Points

  • Rich in Isothiocyanates: Mustard seeds contain glucosinolates, which convert to powerful anti-inflammatory and antioxidant isothiocyanates, particularly allyl isothiocyanate, when crushed.

  • Source of Omega-3s: Mustard oil is a source of alpha-linolenic acid (ALA), an omega-3 fatty acid that helps decrease inflammation and oxidative stress.

  • Packed with Antioxidants and Vitamins: Mustard greens provide high levels of vitamin K, vitamin C, and flavonoids, all of which contribute to the body's anti-inflammatory response.

  • Traditional and Topical Use: Historically, mustard has been used topically as a plaster or poultice to soothe muscle and joint pain and improve circulation, a practice still recognized by modern herbalists.

  • Consider the Source: The greatest anti-inflammatory benefits come from whole mustard seeds, mustard greens, and mustard oil, not the processed condiment, which offers minimal nutritional value.

  • Animal Studies are Promising: Test-tube and animal studies have indicated that mustard compounds can help reduce inflammation associated with conditions like psoriasis and colitis, but more human research is needed.

In This Article

The Anti-Inflammatory Power of Mustard Compounds

Mustard's potential to combat inflammation is attributed to several key bioactive compounds found throughout the plant, from its seeds to its greens. These natural chemicals are responsible for mustard's pungent flavor and its therapeutic properties.

Isothiocyanates

When mustard seeds are crushed or chewed, an enzyme called myrosinase converts compounds known as glucosinolates into isothiocyanates (ITCs). One of the most studied ITCs is allyl isothiocyanate (AITC), which has demonstrated significant anti-inflammatory, antibacterial, and antioxidant activity in various studies. AITC works by affecting pain receptors and inhibiting inflammatory pathways in the body.

Omega-3 Fatty Acids

Mustard oil, in particular, is a source of omega-3 fatty acids, specifically alpha-linolenic acid (ALA). These essential fatty acids are widely recognized for their ability to reduce inflammation and lower oxidative stress throughout the body, playing a key role in regulating the body's inflammatory response. Incorporating mustard oil into a diet can therefore provide a source of these beneficial compounds.

Antioxidants and Vitamins

Both mustard seeds and mustard greens are rich in antioxidants, including flavonoids, vitamin C, and vitamin E, which combat oxidative stress—a major contributor to chronic inflammation. Additionally, mustard greens are an excellent source of vitamin K, a nutrient that acts as a direct regulator of the body’s inflammatory response. This broad spectrum of nutrients provides comprehensive support for managing inflammation.

Scientific Evidence and Traditional Uses

Modern science is beginning to confirm what traditional medicine has long known about mustard's benefits. Research has moved from ancient remedies to modern laboratory studies, and while more human trials are needed, the results are promising.

  • Psoriasis: Animal studies have shown that consuming mustard seed can decrease markers of psoriasis-induced inflammation.
  • Colitis: One study on mice with colitis indicated that allyl isothiocyanate reduced inflammation in the colon.
  • Topical Applications: Traditional medicine and modern herbalists have long used mustard externally for pain relief. Mustard plasters and poultices, made from mustard powder, have been applied to soothe arthritis, muscle aches, and chest congestion, providing a warming effect that boosts circulation.
  • Kimchi Fermentation: A 2020 study demonstrated that fermenting mustard leaves with Lactobacillus plantarum enhanced their anti-inflammatory activity, suggesting that fermented mustard products could be particularly beneficial.

Different Forms of Mustard and Their Benefits

It's important to differentiate between the various forms of mustard when discussing its health benefits. A standard store-bought condiment is heavily processed and unlikely to provide a significant anti-inflammatory boost compared to whole seeds or fresh greens.

Feature Mustard Seeds Mustard Greens Mustard Oil Prepared Condiment
Anti-Inflammatory Compounds High concentration of glucosinolates, which convert to isothiocyanates. Rich in Omega-3s. High in Vitamin K, antioxidants (flavonoids), and some glucosinolates. Concentrated source of alpha-linolenic acid (ALA), an Omega-3 fatty acid. Diluted content, often with added preservatives, sugar, and fat. Minimal benefit.
Best for... Cooking, sprouting, and topical applications for maximum benefit. Salads, stir-fries, and cooked dishes for overall nutrient intake. Cooking in some cuisines (check local laws due to erucic acid concerns) and topical massage. Adding flavor to food. A low-calorie flavor enhancer, but not a significant source of health benefits.
Absorption Enhancement Maximum benefit when crushed, triggering the enzyme action to create isothiocyanates. Enhanced benefit when steamed and eaten with a healthy fat like olive oil. The ALA is readily available for absorption. Nutritional benefits are minimal due to processing.

Practical Ways to Incorporate Mustard

To reap the potential anti-inflammatory benefits of mustard, focus on using the plant in its most natural forms. A few ideas include:

  • Adding whole or ground mustard seeds to curries, sauces, and roasted vegetables.
  • Including fresh or steamed mustard greens in salads, soups, and stir-fries.
  • Using mustard greens as a nutrient-dense substitute for spinach or kale.
  • Making a DIY mustard paste with crushed seeds, water, and vinegar for topical use or occasional internal consumption.
  • Exploring traditional remedies like a mustard foot soak to improve circulation.

Potential Risks and Considerations

While mustard is generally safe, there are some important considerations. Topical application of strong mustard pastes can cause skin irritation or burns, so it should be used cautiously. Pure mustard oil can contain high levels of erucic acid, which is why it is banned for use as a cooking oil in some countries like the US, Canada, and Europe; this is a risk not present with the seeds or greens. Individuals with a mustard allergy should avoid all mustard products. As with any dietary change, consulting a healthcare professional is wise, especially for those with existing health conditions. More large-scale human studies are required to fully understand the effects of mustard on chronic inflammation.

Conclusion

Mustard, in various forms, does show promise as a natural anti-inflammatory agent, primarily due to its content of isothiocyanates, omega-3 fatty acids, and antioxidants. However, the prepared condiment commonly found in grocery stores offers minimal therapeutic benefits compared to the seeds, oil, or greens. For those seeking to leverage its anti-inflammatory potential, incorporating whole mustard seeds and mustard greens into a balanced diet is the most effective approach. While existing research, often based on animal or in-vitro studies, is encouraging for conditions like arthritis and psoriasis, more human clinical trials are necessary to substantiate these findings fully. Consumers should focus on whole food forms and use processed condiments for flavor rather than health benefits.

Resources

To learn more about the compounds and benefits of mustard seeds, you can refer to review articles available on the National Institutes of Health (NIH) website.

Frequently Asked Questions

No, the typical processed condiment found in stores offers minimal anti-inflammatory benefits. Its mustard seed content is often low and diluted with other ingredients, such as sugar and preservatives, which can counteract any potential health benefits.

For the most potent anti-inflammatory effects, you should consume whole mustard seeds, mustard oil, or fresh mustard greens. These forms contain the highest concentration of beneficial bioactive compounds, like isothiocyanates and omega-3s.

Pure mustard oil can contain high levels of erucic acid, which is a concern for cardiovascular health. For this reason, its use as a cooking oil is banned in several countries, including the United States, Canada, and Europe. It is safer to use for topical applications or use a 'mustard essential oil' as a flavoring agent.

Mustard greens and spinach are both healthy, but mustard greens contain potent glucosinolates and vitamin K, which have distinct anti-inflammatory properties. Steaming mustard greens can also enhance their ability to lower cholesterol.

When crushed, mustard seeds release allyl isothiocyanate (AITC), a compound that acts on pain receptors in the body. Topically, this creates a warming, circulation-boosting effect that can soothe sore muscles and joints.

Yes, a study found that fermenting mustard leaves with Lactobacillus plantarum significantly enhanced their anti-inflammatory activity. This suggests fermented mustard products like mustard leaf kimchi may be highly beneficial.

Some anecdotal evidence suggests a spoonful of mustard can alleviate muscle cramps quickly. The theory is that the acetic acid in mustard may trigger neurological signals to stop the cramping. However, scientific research specifically on this is limited.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.