I can buy lecithin granules at my food co-op. I assume that it is from non-GMO soy, assuming that it is from soy.... I don't know much about lecithin except as used in making homemade releasers for baking. I googled lecithin in chicken feed and only got industrial sites. I make a homemade mix with whole and freshly ground grains, seeds, kelp, nutritional yeast, sprouts, sunflower and sesame seeds, flax seeds, quinoa, cranberries, garlic, etc., etc. Would lecithin add anything not already there?