Why does a whole apple offer greater cardiovascular benefit compared to a glass of 100% apple juice, according to dietitians?

The whole apple comes packaged with fiber, which slows sugar absorption, unlike juice.

The difference in nutritional impact between whole fruit and its juice form lies primarily in the presence of dietary fiber. A whole apple naturally contains fiber, which acts as a physical buffer in the digestive tract, slowing down the rate at which its natural sugars are absorbed into the bloodstream. Conversely, when fruit is juiced, this beneficial fiber is largely stripped away. Consequently, even 100% juice delivers a concentrated load of sugar without the natural brake provided by fiber, leading to a quicker spike in blood sugar levels, similar to consuming added sugars in beverages, making the whole fruit the superior choice for heart health.