Black mustard is a plant. The seed and oil from the seed are used to make medicine.
Black mustard oil is used for the common cold, painful joints and muscles (rheumatism), and arthritis.
Black mustard seed is used for causing vomiting, relieving water retention (edema) by increasing urine production, and increasing appetite.
Some people make a paste by mixing ground black mustard seed with warm water. They pack the paste in cloth and apply the cloth directly to the skin as a “mustard plaster.” This preparation is used for treating pneumonia, pain and swelling (inflammation) of the lining of the lungs (pleurisy), arthritis, lower back pain (lumbago), and aching feet.
In foods, black mustard leaves (greens) are used in salads and other dishes.
Also in foods, black mustard seed is used as a spice and to flavor mustard condiment. There are approximately 40 different species of mustard plant. Three different types are generally used to make the mustard condiment. Black mustard (Brassica nigra) is the most pungent. White mustard (Brassica alba) is the most mild and is used to make traditional American yellow mustard. Brown mustard (Brassica juncea) is dark yellow, has a pungent taste, and is used to make Dijon mustard. It is easier to harvest the brown mustard seed than the black mustard seed, so many mustard condiments now contain brown mustard seed instead of black mustard seed.
How it works
There is not enough information available to know how black mustard might work for medical conditions. Black mustard contains chemicals that might initially reduce pain when applied to the skin. But contact with the skin for too long might cause skin irritation and burning.
Not ProvenCommon coldPainful joints and muscles (rheumatism)ArthritisWater retention (edema)Loss of appetiteCausing vomitingPneumonia and painful lung conditions, when applied to the affected area as a “mustard plaster”Aching feet, when applied to the affected area as a “mustard plaster”Lower back pain, when applied to the affected area as a “mustard plaster”Other conditions
Black mustard is LIKELY SAFE when eaten as part of a food such as mustard. But there is not enough information to know if it is safe to use black mustard as a medicine that is taken by mouth or applied to the skin.Some side effects are known. Taking large amounts of black mustard seed by mouth can damage the throat and can also cause other serious side effects including heart failure, diarrhea, drowsiness, breathing difficulties, coma, and death. When applied to the skin, especially for a long time, black mustard can cause skin blisters and skin damage.
Pregnancy and breast-feeding: It'sLIKELY UNSAFEto use black mustard in medicinal amounts if you arepregnant. Black mustard contains chemicals that might start yourmenstrualperiod and cause amiscarriage.
It's also best to avoid using black mustard as a medicine if you are breast-feeding. Not enough is known about the effects it might have on you or your nursing baby.
Diabetes: Black mustard might lower blood sugar levels when taken as a medicine. If you have diabetes and take medications to lower your blood sugar, adding black mustard might make your blood sugar drop too low. Monitor your blood sugar carefully.
Surgery: There is a concern that black mustard might interfere with blood sugar control during and after surgery when taken as a medicine. Stop using bitter melon at least 2 weeks before a scheduled surgery.
ModerateMedications for diabetes (Antidiabetes drugs)
Black mustard might lower blood sugar levels when taken as a medicine. Diabetes medications are also used to lower blood sugar. Taking black mustard along with diabetes medications might cause your blood sugar to be too low. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.Some medications used for diabetes include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.