Does Miracle Clay from Dynamite work for Equine ulcers?

Hey, so I was reading this answer someone asked earlier about gastric ulcers and one of the responses was to use miracle clay. I have a mare that I recently got, and to put it nicely, she was abused. Anyway, I am beginning to suspect that she has ulcers because she just isn't herself. She gets very flinchy from your leg, and just overall has a bad attitude. I was hoping someone could recommend another product that works good, or give some good reviews on the miracle clay. Thanks!