5. Canned meals
Canned meals can never be healthy. Those canned foods are prepared in such a way using different kinds of preservatives so they can last longer, which means, their original nutrient value gets reduced. Some may also contain refined salt and added sugar which is not good for the health either. Moreover, some research was done where it was found that most canned foods, nowadays, have a plastic coating inside the cans to keep the foods inside fresh, and this plastic lining is poisonous at small measures. A small number of chemicals and toxins may often leak from the cans to the food inside.