Worldwide production of apples in 2018 was 86 million tonnes, with China accounting for nearly half of the total.

All parts of the fruit, including the skin, except for the seeds, are suitable for human consumption – an apple is 86% water and 14% carbohydrates, with negligible content of fat and protein; an apple with skin weighing 100 grams provides 52 calories and a moderate content of dietary fiber, with low content of micronutrients (with the Daily Values of all falling below 10%), indicating it is nutritionally poor food source.

(Ref. medicalnewstoday.com, rxlist.com, biomeddermatol.biomedcentral.com, webmd.com, en.m.wikipedia.org & ncbi.nlm.nih.gov)

Yet, apple’s consumption has significant potential health effects ….