Supplementing A Selenium Deficient Horse


“I have a question about using the selenium/Vit E supplement. If your horse has tested low for selenium can you use the regular Horse Guard and the Selenium/Vit E both? If selenium levels are within normal limits then just the Horse Guard is fine is that correct? Just wanting to find out if it is safe to use the 2 together. As I am assuming that the selenium/vit E is just that and does not have the vitamins and minerals of the Horse Guard?”

Answer by Ph.D. Equine Nutritionist, Kelsey Johnson Nonella:
Yes, you are safe to feeding both the horse guard and the selenium/vitamin E. It usually takes about 8 months to get horses to adequate levels but all horses metabolize selenium differently. Horses that are adequate should only receive horse guard. Like you assumed, the selenium/vitamin e product has no other vitamins and minerals.

Horse Guard


Vit. E


About Dr. Kelsey J. Nonella Ph.D., P.A.S.

Kelsey J. Nonella, Ph.D. is an equine nutritionist who was riding horses before she could walk. Her love for horses drives her to help educate people on what their horses’ needs in order to have happy, healthy horses. Kelsey went to Cal Poly receiving a Bachelor’s of Science in Animal Science and then onto West Texas A&M, where she got her Masters and eventually her Doctorates in Equine Science. At A&M, Dr. Nonella did extensive research on Selenium within horses. Click here to view her research. Kelsey’s colleagues have mentioned her as one of the United States equine Selenium experts.
View all posts by Dr. Kelsey J. Nonella Ph.D., P.A.S.

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