Duncan Was a Subject in a Clinical Study That Was

Multiple Choice

Duncan was a subject in a clinical study that was designed to determine the effects of certain diets on health.While participating in the study,he was given a synthetic formula diet that provided vitamins,minerals,animal protein,purified water,and corn starch.Within a few weeks,Duncan developed patches of scaly skin on his arms and legs and bald spots on his head.When _____ was added to his formula,the signs of the nutritional deficiency disappeared.

A) polyunsaturated fat
B) lipase
C) calcium citrate
D) oleic acid