Quinoa seeds are small, nutrient-dense grains known for their high protein content, including all nine essential amino acids, making them a complete protein source. They are also rich in fiber, vitamins (especially B vitamins), and minerals like magnesium, iron, and phosphorus. Quinoa is naturally gluten-free, making it a popular choice for those with gluten intolerance or celiac disease. It has a slightly nutty flavor and is versatile in cooking, often used as a substitute for rice or couscous in various dishes.