Effects of Different Protein and Riboflavin Contents of Diet upon the Chemical Composition of the Body

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Abstract
In feeding expts. with pairs of rats given equal amts. of food, an increase in both riboflavin and protein content of the liver and the whole carcass followed an increase of protein in the diet from 12-32% although the riboflavin intake was held constant at 7 [mu]g./g. An increase in the riboflavin content of the diet from 1 to 9 [mu]g./g. increased the storage of riboflavin in the carcass and liver and had a slight tendency to increase the total protein stored if protein intake was held constant at either 12 or 20% of the diet. With ad libidum feeding an increase in riboflavin content of the diet resulted in increased appetite, growth, and retention of protein and riboflavin.