The common apple may soon improve its already stellar reputation as a healthy food if the recent benefits on improved gut health discovered in research on rodents translate someday to humans.

Danish microbiologists fed rats an apple-rich diets (either whole apples, juice, pomace or puree) or a control diet for 14 weeks, then examined the microbial content of their digestive systems, using the novel technique of genetic testing to learn if these foods had any beneficial effect on their gut bacteria.

Rats eating whole apples rich in pectin, a component of dietary fiber, had increased amounts of specific bacteria that may be linked to improved intestinal health. Over the long haul, scientists say, this bacteria is instrumental in producing short-chain fatty acids that create the ideal pH environment that ensures a healthy balance of microorganisms. Moreover, this beneficial bacteria produces butyrate, an important chemical that fuels the cells of the intestinal wall.

A reminder: Because conventionally-grown apples are exposed to more than their fair share of pesticides, protect your health by choosing organic whenever you can.

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