Although the fruit contains plenty of nutrients and is one of the most recommended foods, certain types of fruit make you bloated and inflate your belly. This is mostly due to fructose and glucose. That is why you ought to eat more berries (blueberries, blackberries, strawberries, raspberries) and citrus fruits (grapefruit, orange). On the other hand, apples, peaches, pears cause heavy bloating, while bananas also cause problems with gases...
Sorbitol, xylitol, mannitol are some names of artificial sweeteners added to carbonated drinks (especially diet ones), sweets, chewing gums ... If you are regularly consuming such foods and you feel bloated, then stop, as it is not good for your body. You should choose foods that are sweetened on the basis of stevia, or agave syrup.
Milk is certainly not healthy in larger quantities (read the article 'Is milk even healthy anymore?'). If you find yourself bloated after drinking milk then you have lactose problems. For some, these problems can be permanent, but in others they occur only occasionally in combination with some other food.
Starch causes bloating in many cases, so this food should be avoided. Since starch cannot be completely avoided, make sure you choose such foods that contain less fructose. Starch foods happen to have a lot of fructan, which is a fructose polymer, and it is significant in potato, corn, groat...