According to the laws of physics, unless you can create something from nothing, you still have a pound of feed and 5.5 pounds of water in the roots and leaves.
If you don't believe this take a chunk, weight then dry it in an oven. then weigh it. You can't create something from nothing. Even if you add vitamins and minerals to the water the young sprouts and fodder are all coming from the nutrient in the seed.
So what you have done is reduced the seed, so you now are feeding less protein and more carbs.
So no wonder your hens are starving and run to you when you come out. That may be fun for you y I use organic non-GMO grains and seeds to feed my hens and they seldom come running to me unless they think I have some snack for them of some unusual items I toss out from time to time.
Same with Scratch. Why do hens come running for Scratch, because it is real food, grain whereas the pellets are the vacuumed or swept up dust form the flour milling industry heated and glued together with sugar or molasses.
When you feed whole or fresh cracked grains you don't need scratch.
Now as long as you don't reduce you hen protein intake, adding fodder to those who don't get to pasture is fine. I grow fodder to give some greens to my hens who are locked in so they don't get to pasture for a while or young ones or if it snows or the grass is just all dried out in summer.
A little extra greens is nice. But as for a complete food, add some fish meal or camelina meal, yeast, kelp meal, or other high protein food so you are not just giving them
Barley seed and grass. Corn is all GMO even when called organic it is pretty well all cross pollinated so I would avoid corn wheat and soy as feed or food for people.
As for Gluten, eating eggs from hens fed wheat should not be an issue. But I would not want to eat regular commercial eggs anyway. Nor feed my hens wheat.
And GMO grains is more of the problem than gluten. But once the digestion is broken down by the GMOs, it might need to be stricter until you get the digestion repaired and built back up with enzymes, probiotics and yeast fungal elimination programs so you can handle gluten again. Takes 3 months to reverse the dysbiosis and a few more to heal the gut and get the gut flora solidly grown in so the yeast doesn't come right back rapidly. Then gluten will be well tolerated in most people, but its a good idea to avoid much wheat and corn anyway.