Firstly, given their widespread geographical and seasonal availability, apples are one of the most highly consumed fruits around the world. Secondly, a recent study found that, compared to other fruits, people who ate more apples had the lowest risk of dying from heart disease 2, the leading cause of death worldwide. And thirdly, they are one of the best dietary sources of bioactive compounds called polyphenols. Polyphenols are produced by plants to protect themselves against environmental stressors as they grow 7. Interestingly, it is thought that these polyphenol compounds have a similar protective effect in animals and humans who eat these plants as food.