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Binge eating/dieting pattern may reduce lifespan, study finds
30 Apr 2008
Scientists claim that people who binge eat and then diet to lose weight may be limiting their life expectancy.
Researchers at the University of Glasgow found that fish given a 'binge then diet' food regime showed a reduced lifespan of up to 25 per cent.
The findings could point to similar health problems for humans who choose to follow similar dieting trends, scientists say.
The study compared the growth rate, success of reproduction and lifespan of stickleback fish.
A group of fish were given a constant amount of food every day, while the remainder were fed the same amount of food in a more erratic pattern.
"The fish on the fluctuating diet put just as much effort into breeding - the males became brightly coloured as usual and the females produced the normal number of eggs," professor Neil Metcalfe who led the research, said.
"However, on average their lifespan was three-quarters that of animals eating a constant amount every day."
Researchers say that the difference in lifespan was not as a consequence of more rapid ageing, but an increase in the risk of sudden death.
Professor Metcalfe added: "It seems that uneven growth, due to the fluctuation in the amount eaten per day, is responsible for the increase in the risk of sudden death."
"This is possibly because the body tissues are more likely to have imperfections due to growth spurts."
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