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Eating two apples a day has been shown to help keep cholesterol down and fight heart disease risk, according to new research.

In a paper published in the American Journal of Clinical Nutrition a team of scientists – led by the University of Reading in collaboration with the Fondazione Edmund Mach (FEM) Institute, Italy – found that eating apples which were rich in fibre and compounds called polyphenols reduced the amount of total and LDL cholesterol and improved markers associated with blood vessel health in participants who had slightly raised blood cholesterol levels.

Professor Julie Lovegrove, director of the Hugh Sinclair Unit of Human Nutrition at the University of Reading, explains: “This latest study shows that the impact of an easy-to-implement dietary change could have an important impact on key measures of heart disease risk. A particular interest in this study is how the two whole apples, rather than a sugar and calorie matched apple juice drink, has had a significant effect on markers of heart health of participants. It seems the old adage of an apple day was nearly right.”

“It seems the old adage of an apple day was nearly right.”

The team used Renetta Canada apples grown in the Trentino Italy, which were rich in a type of polyphenol compound called proanthocyanidins (PAs) and a matched apple juice squash as a control. While the control drink was similar in calories and total sugar the whole apple used had significantly higher proportions of fibre (8.5g vs <0.5g, respectively) and total polyphenol content (990mg vs 2.5mg, respectively).

Dr Thanasis Koutsos, who performed the study, says: “One of the clear findings from this study is that simple small changes in our diet such as the daily introduction of two apples may have an important impact on markers of heart health.

“We don’t yet know whether the fibre that is found in the apple, or the polyphenol which is in significantly greater concentration in the apples we used, is responsible for the results. Either way, the clear winner here is the whole food.”

Full citation: Koutsos. A, et al. 2019, Two apples a day lower serum cholesterol and improve cardiometabolic biomarkers in mildly hypercholesterolemic adults: a randomized, controlled, crossover trial, American Journal of Clinical Nutrition, DOI: 10.1093/ajcn/nqz282

 

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About the Author

Jim Manson

Editor-in-chief
Jim Manson is Editor-In-Chief of Diversified Communication UK's natural and organic publishing portfolio. He’s written widely on environment and development issues for specialist magazines and national media, including the Financial Times, The Guardian, The Times, Time Out and World Bank Urban Age.

Articles by Jim Manson
Jim Manson
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