I feed that if i ever accidently run out of red cell, as ginger has anaemia, and i have to feed it everyday - but other people i know will feed it occasionally to get a bit of 'oomph' however, i do know the odd horse will get a bit too much oomph and start cartwheeling and backflipping around the field, but i also think that the feeding directions on a lot of the equine america products can be easily misread...