
9. Damage to tooth enamel:
The American Dental Association suggests that frequent consumption of acidic foods can erode tooth enamel. Apple does have some amount of acidity, and a study noted that the erosion caused by the fruit was even greater than orange. Apple fruit juice could be more acidic than the whole fruit. While the juice can be avoided, the benefits of eating the whole apple outweigh the risks. Fruits seldom cause extensive tooth decay by themselves. Nevertheless, a child can take a sip of plain water after eating an apple to neutralize the acidity and it’s always nice to rinse your mouth after eating a meal or a snack

10. Pesticides:
Apples rank on the top of Environmental Working Group’s (EWG’s) Dirty Dozen list. The fruits are estimated to harbor an average of 4.4 pesticide residue, including the presence of diphenylamine, a regulated pesticide in the US and Europe. Although the US considers diphenylamine safe, the European food safety authority showed concerns about the adverse health effects of diphenylamine-treated fruit. The pesticide can cause the formation of compounds called nitrosamines. Some studies have found that eating foods containing nitrosamines could elevate the risk of stomach and esophageal cancers. Therefore, it is recommended to eat organic apples as much as possible after washing them properly.