Gluten Free No Refined Sugars How can you improve The Ultimate Muesli - a muesli so complex and satisfying it's known as the breakfast that eats other breakfasts for breakfast? Simple. Make it gluten-free. So out goes the barley and rye, in goes quinoa and buckwheat. Then we throw in handfuls of five seeds and five fruits. Now everybody can enjoy our Coconut and Seed Muesli.