[crazy4cats]

Here is an article found on the Taurine-Deficient Cardiomyopathy Face Book Page:

In addition to the below, corn gluten meal is an excellent precursor for taurine.

Debunking Myths around Corn Gluten Meal
Avi Deshmukh, DVM, MS, Ph.D.

Why add CGM in petfoods?

Most of the available CGM contains about 70% protein. It is an excellent source of
methionine & cysteine, which are beneficial while acidifying the urine to prevent
and/or manage urinary caliculi. Because of this, CGM is typically combined with
another animal or plant protein source.

Additionally, when compared to other proteins, CGM has a low level of ash (<
2.0%) and a full complement of vitamins and xanthophylls such as zeaxanthin and
lutein.1

Zeaxanthin and lutein are antioxidants and protect the vision.

Facts, myths and misconceptions about corn:

Misinformation about corn & CGM Facts about corn & CGM
(1) Corn is not digested by dogs and
cats
No mammal can digest the intact corn
kernel.
**However, when corn kernels are ground
and cooked, corn is >90% digestible.

(2) Corn & CGM are cheap ingredients
and added to cheapen the food
***High quality of corn and CGM are
expensive ingredients.

(3) Corn and CGM are fillers
The term “filler” means that it has no
nutritional or beneficial value to the pet.
***Both, corn and CGM, provide a number
of beneficial nutrients to improve the
animal health
(4) Corn & CGM cause allergies in
pets
***The incidence of “True food allergies”
is very low. In fact, animal proteins are
potentially more allergic than plant
proteins. Studies show an incidence rate
of 1.5% of adverse reactions to food
may be caused by corn or CGM.

(5) The cob is added along with corn
kernels
***Cob is never added in the pet foods.

From what I can tell, corn gluten meal is a much better addition to dog kibble than legumes and/or potatoes.