Biona Organic Rye Bread is made in a German bakery that uses traditional artisan skills - freshly grinding the grains just before baking to create loaves packed with the wholegrain goodness needed as part of a healthy diet. Chia seeds are rich in essential Omega 3 & 6 fatty acids, and also a good source of complete protein, antioxidants, calcium and fibre. As with all other Biona rye breads we only use sour dough, no added yeast.