Hi Swuzly,

I highly recommend you read through this web site, especially "Food Intolerance in Animals and Man" and "Lectins"

http://dogtorj.tripod.com/index.html

Its a long read but it ties it all together, I have eliminated the "big 4" as well as fruit from my diet and I can directly experience the results, but that's just me, you'll have to see whats works for you.