Mustard seeds are small, round seeds obtained from the mustard plant (Brassica species) and are widely used as a spice in cooking. They come in different varieties—yellow, brown, and black—each with a distinct flavor and pungency. Mustard seeds are commonly used in Indian, Asian, and European cuisines to temper dishes, add flavor to pickles, curries, sauces, and salad dressings. When heated, they release a nutty aroma and a sharp, slightly spicy taste. Rich in antioxidants, minerals, and dietary fiber, mustard seeds also offer health benefits, including aiding digestion, reducing inflammation, and supporting heart health. They are a staple in kitchens worldwide.