What food is the healthiest and what food is unhealthy?

Vegetables and fruits are the healthiest, including pineapple, blueberry, apple, cantaloupe, cherry, kiwi, cabbage, mushroom, pumpkin, broccoli and sweet potato. There are many unhealthy foods, such as fried food, pickled food, processed meat food (dried meat, floss, sausage, etc. ), biscuits (excluding low-temperature baking and graham crackers), soda-cola foods, convenience foods (mainly instant noodles and puffed foods), canned foods (including fish and fruits), barbecue foods, etc.