Protein Level and Pteroylglutamic Acid Intake on Growth Rate and Hemoglobin Level in the Rat

Abstract

Anemia was produced in 4 wks. in growing rats by feeding a ration containing 5% casein and 2% sulfathalidine, to which no pteroylglutamic acid was added. This anemia was prevented either by the addition of pteroylglutamic acid to the diet or by increasing the casein to 20%. There was no improvement in growth when PGA was added to the 5% casein diet, while 30% casein gave normal growth.