Ethan Sims and Overfeeding

Wednesday, April 25, 2012

"Permission was obtained to recruit volunteers for these experiments at the Vermont State Prison. Here it was not only possible to measure exactly how much was eaten, but also to monitor daily physical activity."

"During the Next 10 years Sims and his co-workers studied 19 men in the prison. Each subject was studied for an initial period of 6 weeks while he ate his normal 7-8 MJ/day prison rations. After it was established that their weights were constant on this diet, the subjects were encouraged to eat as much as they could for 7-8 months. The Average food intake per person during this period was 14MJ/day, with some eating as much as 40 MJ/day for the entire period. (The normal RDA for young men engaged in light physical activity is 11 MJ/day) However, the average increase in body mass was limited to 21% all of which was gained in the first 2 months. There was no further increase in weight thereafter, despite the continued overeating( even in those consuming 40 MJ/day!!)"

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