The familiar saying, An apple a day keeps the doctor away, may have some support from modern research. Nutrition experts say apples are rich in essential nutrients and can contribute to overall health when included as part of a balanced diet.
A medium-sized apple contains around 60 calories while providing fibre, vitamins, antioxidants and a high water content. Experts recommend eating apples in their whole form rather than consuming them as juice, cider or other processed products, as processing can reduce some of their nutritional value.
Apples contain roughly 85 per cent water and are a good source of dietary fibre and antioxidants, which may have several positive effects on the body.
Research suggests that regular apple consumption may help maintain healthy blood sugar levels. The fruit’s fibre content and relatively low amount of glucose can help prevent sudden spikes in blood sugar, potentially making apples a useful addition to the diets of people managing diabetes, although they should still follow medical and dietary advice.
Experts also point to the role of apples in heart health. Their fibre and antioxidants may help reduce levels of harmful cholesterol, while maintaining healthy cholesterol levels can lower the risk of cardiovascular disease.
Apples may also support healthy blood pressure. Regular consumption as part of a balanced diet may contribute to better blood pressure control, potentially reducing the risk of serious cardiovascular complications such as heart attacks and strokes.
The fruit contains quercetin, an antioxidant with anti-inflammatory properties, along with fibre that may help reduce inflammation in the body. Some research has also linked apple consumption with lower levels of C-reactive protein (CRP), a marker associated with inflammation.
Apples can also benefit gut health. Pectin, a type of fibre found in apples, acts as a natural prebiotic and can support the growth of beneficial gut bacteria. Quercetin may also help limit the growth of certain harmful bacteria.
Because apples are high in both water and fibre, they can help people feel full for longer, potentially reducing frequent hunger and supporting healthy weight management.
Some research has further suggested a possible link between regular apple consumption and longevity. One study reported that people who consistently ate apples had an approximately 35 per cent lower risk of death 15 years later. However, experts stress that eating a single fruit cannot guarantee good health.
A balanced diet, regular physical activity and an overall healthy lifestyle remain essential for maintaining long-term health.
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