I would love to read your husband's paper and I agree with you 100%! But I think that another reason why we, good parrot keepers, end up eating a healthier diet is knowledge. See, the thing is that feeding a dog or a cat is very easy, all you have to do is watch TV where the ads tell you why one food is better than the other and buy the good brand. And let's not even go into feeding ourselves and the terrible abuses we commit against our bodies! But, when it comes to parrots, there is no good commercial food to feed them and they NEED to eat produce so we end up having to come up with our own food for them and that means learning about the bird's natural diet and about nutrition. And so we learn about organic versus regular produce; processed versus raw; about how different colors mean different concentrations of phytonutrients and that the more colors you eat, the better your diet will be; how whole grains are so much healthier than processed; about the difference between macro and micronutrients; gut microbiome and its role in the immune system; animal fat and protein versus plant fat and protein; oxalic acid; salicylates, etc. etc. And, after learning about all this, we realize that we are pretty much eating mostly processed crap because even when we cook from scratch, the animals we eat have been fed crap and hormones, and lived in terribly unhealthy conditions! I started with my grandkids and became obsessed with all of them eating the 'dirtiest dozen' only organically grown (not completely successful but trying hard -back home is not so easy to find everything organically grown) and then I started working on my husband (big time meat/white rice/potato/pasta/soda man). Sheesh, we even ended up drinking better water because of the birds!