One of the difficulties which is likely to prevent the wide adoption of his treatment is the detailed knowledge of food composition and calorie value which it requires.
"The Starvation Treatment of Diabetes"
Lewis Webb Hill Rena S. Eckman
The unit of measurement is termed a calorie.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
The measurement and tabulation of food values in terms of calories and the investigation of the calorie needs of men and women in various occupations has been one of the great contributions of the past twenty years of nutritional study and to the progress made we owe our power to produce proper rations for every type of worker.
"The Vitamine Manual"
Walter H. Eddy