Ok our child's kids is always full of energy and happy healthy and walks great at the barn, but we got to a show the other day and she she wouldn't move. And seemed to be limping, and NO we have not EVER feed anything other then feed oats and oil. I clipped her 2 days before and by the way she LOVES...

Ok so can anyone tell me is there any adverse effects after using this product and can it be used like in back to back show weeks?