The general perception of apples as a health-promoting food is reflected in the old saying “an apple a day keeps the doctor away” and new research shows this may be close to the truth.

The reason, according to the results of a study by microbiologists at the University of Denmark’s National Food Institute, is that apples may be good for intestinal health because they boost the levels of good bacteria in the digestive system.

A new review of published comparisons claims that organically grown food contains no more of a certain group of important nutrients than conventionally grown food.