In 1928, Stefansson and Anderson entered Bellevue Hospital, New York for a controlled experiment into the effects of an all-meat diet on the body. The committee which was assembled to supervise the experiment was one of the best qualified in medical history, consisting as it did of the leaders of all the branches of science related to the subject. Dr. Eugene F. DuBois, Medical Director of the Russell Sage Foundation (subsequently chief physician at the New York Hospital, and Professor of Physiology at Cornell University Medical College) directed the experiment. The study was designed to find the answers to five questions about which there was some debate. The results of the year-long trial were published in 1930 in the Journal of Biological Chemistry and showed that the answer to all of the questions was: no. There were no deficiency problems; the two men remained perfectly healthy; their bowels remained normal, except that their stools were smaller and did not smell. The absence of starchy and sugary carbohydrates from their diet appeared to have only good effects. Once again, Stefansson discovered that he felt better and was healthier on a diet that restricted carbohydrates. Only when fats were restricted did he suffer any problems. During this experiment his intake had varied between 2,000 and 3,100 calories per day and he derived, by choice, an average of eighty percent of his energy from animal fat and the other twenty percent from protein.