Metaboleeze delays the onset of fatigue in intensely worked horses. Contains chromium, B complex vitamins and organic trace minerals. Strenuous exercise and high grain diets increase the excretion of chromium in the urine of equine athletes and lead to depletion of chromium in the body. Anecdotal evidence suggests chromium supplementation may positively impact horses prone to exertional rhabdomyolysis or tying-up.