222 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



EFFECT OF UNRESTRICTED MEALS. 



One of the most perplexing factors in the whole research was the 

 unrestricted meals allowed Squad A, i. e., those taken Sunday noon 

 after the biweekly experiment in Boston, and the diet during the 

 Thanksgiving and Christmas recesses. The academic program made 

 it possible for many of these men to go to their homes every two weeks. 

 Under these conditions they would take their meals at the family table 

 and, on account of the apprehension of parents and friends, it was 

 almost obligatory for the men to eat more food than was commonly 

 served at the diet table. After considerable discussion it was deemed 

 absolutely essential to allow these men unrestricted diet on these 

 days, but they were especially cautioned to curtail so far as possible 

 the consumption of protein. The men consented to report in writing 

 to the best of their knowledge the food eaten in the unrestricted meals 



Kgs. 

 70 



62 



Sept.30 0ct.20 Nov.9 Nov.29 0ec.l9 Jan.8 Jan.28 



Fig. 68. — Body-weight curve of Vea. 



Mor.O 



on the alternate Sunday noons. It will be recalled that they were 

 given a standardized laboratory breakfast and the Sunday evening 

 meal was usually very light ; hence, the chief extra energy was obtained 

 in the Sunday noon dinner. 



With nearly every man there was a perceptible increase in the body- 

 weight following the free meal, this increase frequently amounting to 

 as much as 1 kg. In the curves for all of the subjects but Bro, the first 

 actual rise occurs shortly after the unrestricted day November 11-12. 

 We thus have a definite rise in weight, which can be ascribed solely to 



