Mustard’s nutritional profile boasts a plentiful supply of essential minerals including calcium, iron, manganese, phosphorus and zinc. In addition to being a very good source of omega-3 fatty acids it also supplies tyryptophan, phosphorus, iron and protein. Mustard seeds are also a very good source of selenium.
Ground mustard is a natural emulsifier, helping ingredients like oil and egg bind together. Homemade mayonnaise and Hollandaise sauce are two excellent examples of sauces that gain stability from a pinch or two of mustard powder.