Bob's Red Mill® Organic Whole Grain Stone Ground Amaranth Flour. To Your Good Health®. -Bob Moore. Gluten free. Pre-Colombian Aztecs once thrived on amaranth until it was outlawed by Spanish conquerors in the 16th century. Eventually, it fell into complete obscurity. Fortunately, it has recently been rediscovered. Bob's Red Mill whole grain amaranth flour has a mild but distinct, sweet, nutty and malt-like flavor. It is a great way to enhance the flavor of baked goods and it is very easy to use. Simply substitute 1/4 of your recipe's conventional flour with Bob's Red Mill whole grain amaranth flour. Friend of the heart. Certified Organic by QAI. Bob's Red Mill products labeled gluten free are batch tested in our quality control laboratory. We use an ELISA gluten assay test to determine if a product is gluten free. Wholesome.