Allyl Isothiocyanate

Mustard Seeds are the whole dried seeds of Sinapis alba (white/yellow), Brassica juncea (brown), or Brassica nigra (black). They are valued for their pungent, sharp flavor and their topical counterirritant, digestive stimulant, antimicrobial, and potential hypoglycemic properties. For the rheumatologist, gastroenterologist, and primary care physician, mustard seeds serve as a temporary topical analgesic for musculoskeletal pain (via poultice), a digestive aid to relieve dyspepsia, a natural food preservative against foodborne pathogens, and a modest adjunct for glycemic control. For the patient, mustard seeds add pungent heat to pickles, chutneys, marinades, and curries while providing temporary relief from joint pain, improving digestion, and supporting food safety. Mustard seeds are a recognized allergen; individuals with mustard allergy must avoid all mustard‑containing products. When used in culinary amounts and applied topically with caution, they contribute to pain relief, digestive comfort, and culinary versatility.