Mustard is one of the well-known spices and has benefits, but it also has caveats and is not suitable for thyroid patients if it is consumed in a large amount. We emphasize here that mustard is not a cure for any disease or health condition, and should not be used as a substitute for medication or see a doctor, and ask your doctor if eating mustard may benefit you in dealing with certain health problems.
Eating mustard seeds, leaves, or pulp is generally safe for most people, especially when consumed in amounts normally found in the average person's diet.