Mustard Seeds are tiny, but a potent seed that packs a punch in terms of flavor. They are used to flavor many different dishes and can be used whole or ground up. Mustard seeds are a good source of fiber and protein, as well as minerals like magnesium and potassium. When it comes to cooking with Mustard Seeds, they can be used in a variety of ways. They can be used whole in dishes like pickles, or ground up and used as a spice in rubs or marinades. Mustard Seeds can also be used to make your own mustard at home. India is the world's largest producer of mustard seeds.