Apples boost immunity and reduce asthenic syndrome in the elderly by up to 20%.

An apple a day is enough to boost your immunity and reduce your risk of asthenic syndrome, a disease that reduces muscle mass and strength. Flavonoids — found in apples, grapes, strawberries and blueberries, among other fruits — are associated with increased immunity and health protection.

Although no significant link was found between flavonoid intake and frailty, higher intakes of these metabolites were associated with prevention of frailty.

The discovery was made by researchers at Harvard Medical School, Boston, USA, after a trial of 1,791 people, followed for 12 years, and published in the American Journal of Clinical Nutrition.

Strengthening immunity

Approximately 10 to 15% of older adults have asthenic syndrome, a disease that can lead to increased risks of falls, fractures, disability, hospitalization, and death.

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“There may be some truth to the old adage, an apple a day keeps the doctor away,” said the study authors. “Our findings indicate that for every 10 mg of flavonoid intake per day, the odds of impairment decrease by 20%.”

The diet is easy to follow, because a medium-sized apple actually contains about 10 mg of the stuff.

the study

To arrive at such evidence, the researchers analyzed 1,701 people’s diets over a 12-year period.

The result indicated an anti-inflammatory, antibacterial, antiallergic and antiviral effect of flavonoids.

It can be easily found in many fruits and vegetables such as broccoli, onions, spinach, and kale.

Over the years of the study, 13.2% of the participants ended up developing asthenic syndrome.

Those with the highest intake of flavonoids reduced their risk of developing the syndrome by 20%.

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More benefits

And it doesn’t stop there, apples reduce the risk of asthenic syndrome and much more!

The fruit also helps boost immunity and the general framework of health protection, thanks to quercetin, a type of flavonoid.

This substance is present in large concentrations in red fruits, in addition to spices such as onions, parsley and sage.

10 mg of flavonoids, a substance found in apples, reduces the risk of asthenic syndrome by 20%, which usually affects the elderly and increases the chance of falling. Photo: Playback / Freepik.

with information from Sci Tech Daily