350 THE VITAMINES 



affected. Zernik (1271) noted a decrease in the resistance to drugs. 

 The number of tuberculosis cases was considerably increased in 

 Germany (Kieffer, 1272) and in England (1273). The contrary, 

 however, was true of cancer (Rumpel, 1274) and also of diabetes, 

 according to Rumpel, and to Elias and Singer (1275). The effect on 

 eye diseases was studied by Seefelder (1276). 



It is evident from what has been said, that in spite of the small 

 amount of animal protein in the war diet of Central Europe, no out- 

 break of pellagra occurred; this was also commented on by S. Harris 

 (1277). In addition, despite the lack of vitamine A, very little 

 ophthalmia prevailed. On the other hand, there was considerable 

 scurvy and hunger edema. We see from the well-controlled diet of 

 the Danish population during the war, that 68 grams protein (con- 

 taining 27 gm. animal protein) per day, 50 grams fat and 2500 

 calories completely sufficed to cover the requirements. Hindhede's 

 experiments show that the amount of protein might even be decreased 

 further, and could be substituted by good vegetable protein. 



