nVirginia Equine Research (VER) does not endorse feeding constant high levels of added fat.

It is useful as a glycogen extender for added endurance, as long as you burn it up in work, so that it does not get deposited around the heart, liver and other organs.

The apparent short term benefits for an EPSM or “Metabolic” horse are soon lost, since the animal “implodes” from malnutrition.