A Study of Gut Bacteria
Saturday, August 7th, 2010Changing gut bacteria could explain chronic western illnesses: Study
A shift in gut microbial composition may explain the rising prevalence of chronic stomach upsets and even obesity among children in developed nations, suggests new research.
Diets high in fat, sugar and protein, and low in fiber have been associated with increased incidence of noninfectious intestinal diseases all over the world.
Researchers writing in the Proceedings of the National Academy of Science (PNAS), examined differences in gut microbiota in 14 healthy children in rural Burkina Faso and 15 healthy children in urban Italy in an effort to explain the role of gut bacteria in some of these chronic illnesses.
The Burkina Faso children ate a diet high in starch, fiber and plant polysaccharides, and low in fat and animal protein – a diet thought to be similar to that of early human settlements at the time of the birth of agriculture. The Italian children’s diet was typical of the developed world – high in animal protein, sugar, starch, and fat, and low in fiber.
The researchers, from the University of Florence, compared intestinal bacteria in the two populations and found that significant differences developed from the time that breast feeding ceased.
“Our results suggest that diet has a dominant role over other possible variables such as ethnicity, sanitation, hygiene, geography, and climate, in shaping the gut microbiota,” the authors wrote.
“We can hypothesize that the reduction in richness we observe in EU compared with BF children, could indicate how the consumption of sugar, animal fat, and calorie-dense foods in industrialized countries is rapidly limiting the adaptive potential of the microbiota.”
By Caroline Scott-Thomas, 06-Aug-2010, www.Nutraingredients-usa.com