L-Threonine is an essential amino acid.{45990} It undergoes catabolism via threonine dehydrogenase to yield the glucogenic metabolites succinyl coenzyme A (succinyl CoA) and pyruvate. Administration of L-threonine-deficient diets induces lameness of the thoracic and pelvic limbs and decreases food intake and weight gain in kittens.{45991}