Abstract
Crystalline vit. B12 was fed to immature rats of both sexes in order to determine whether the vit. could alter thyroid function in normal or thyroprotein-treated rats. The growth rate of the rats supplemented with the vitamin was increased above that of the normal or thyroprotein-treated controls, but there was no significant effect on thyroid wt. or uptake of I131. It is concluded that vit. B12 does not alter normal thyroid activity in rats.

This publication has 2 references indexed in Scilit: