I haven't used whole amaranth, but I tried using amaranth flour recently and didn't really like the taste. And just a warning that you can't use 100% amaranth flour in pancakes (and I read other baked goods). It apparently has a lot of moisture so you will end up with pudding (took me 2 batches of pancakes before I researched it and figured this out!). It is supposed to work well in combination with other flours though.