I had to laugh when I saw this thread! I have been doing this for years, but for my consumption! I juice wheat grass all the time and gave the chickens and quail the bottom half. Now I know what those longing looks were saying: "Dude, where is the rest of the plant!" I have have started a whole bunch of trays so everyone can have their wheat grass every day! I challenge the rest of you do grow an extra pan of wheat grass for you and your family. It is great stuff.
You should try adding barley to your mix. It is a bit more bitter than wheat to eat (which is why most people use wheat instead) but is loaded with vitimins and minerals. Once you get use to it you wont be able to get eneough.
When I'm feeding the horses I quite often have a nibble (after all it is right there!) I love sprouted lupins (roots and all), small amounts of barley and the chia is very similar to alfalfa. I've found that sunflower seed taste rancid when sprouted which is part of the reason I switched to chia. Also chia has a better mix of the omegas...