[Wylie's Mom]

Someone got back to me on behalf of the nutritionist - they are not using ANY grain from the corn:

"Corn silk (Zea mays) is an herbal remedy made from stigmas, the yellowish thread-like strands found inside the husks of corn. ORIJEN does not contain any grain from the corn.

Corn silk is used to treat urinary tract infections and kidney stones in adults. Corn silk is regarded as a soothing diuretic and useful for irritation in the urinary system. This gives it added importance, since today, physicians are more concerned about the increased use of antibiotics to treat infections, especially in children. Eventually, overuse can lead to drug-resistant bacteria. Also, these drugs can cause complications in children.

Furthermore, corn silk is used in combination with other herbs to treat conditions such as cystitis (inflammation of the urinary bladder), urethritis (inflammation of the urethra), and parostitis (mumps).

Corn silk is said to prevent and remedy infections of the bladder and kidney. The tea is also believed to diminish prostate inflammation and the accompanying pain when urinating.

Since corn silk is used as a kidney remedy and in the regulation of fluids, the herb is believed to be helpful in treating high blood pressure and water retention. Corn-silk is also used as a remedy for edema (the abnormal accumulation of fluids).

Corn silk is used to treat urinary conditions in countries including the United States, China, Haiti, Turkey, and Trinidad. Furthermore, in China, corn silk as a component in an herbal formula is used to treat diabetes."

I emailed back as this answer didn't satisfy me in terms of whether a dog with a corn allergy will react to cornsilk the same way they do to corn. I'll let you know what they say.