Abstract
Anterior pituitary growth hormone at a dosage of 2.5 mg./day augmented the renal damage caused by a choline deficient diet, but did not affect liver lipid accumulation. No greater effect was obtained by doubling the dosage. Growth hormone while stimulating body growth in animals on an adequate diet was ineffective in preventing the wt. loss occasioned by the deficient diet. Hydrocortisone prevented the typical renal lesions caused by choline deficiency, but did not restore a normal cytoarchitecture. It did not prevent the fatty liver observed in animals on the deficient diet.