Millet is considered one of the ancient grains, alongside quinoa and amaranth. Because it is gluten free, it can be substituted for ordinary porridge oats to create a healthy alternative. Thought to have originated in North Africa, it has been consumed since prehistoric times and is still a food staple in many African countries. In Europe, it is mostly used in birdseed or livestock food, but is currently enjoying a rise in popularity because of the increasing number of gluten-free diets.