The tiny seedlike grains of quinoa are packed with nutrient power, and this food has become popular as a staple protein. In fact, quinoa contains up to 50 percent more protein than other common grains, and it is also rich in other essential nutrients. Quinoa is eaten whole, and it is also made into flour as an excellent gluten-free alternative to wheat bread and pasta. Protein powder is commonly made from whey, a natural milk protein. However, this can be unsuitable for individuals with a milk allergy or food intolerance. Several commercial protein powders also contain artificial ingredients and flavors. Quinoa flour is a natural, nutrient-rich alternative for protein powders.