1. Oil temperature
A big disadvantage of fried food is that the oil temperature is too high, which leads to partial protein denaturation of fried food and produces a toxic substance called dioxin, which is a carcinogen and can cause male sexual dysfunction (burnt food in barbecue will also produce a lot of dioxin, which will be absorbed twice after being mixed with beer, hehe).
So if you like fried food, you must go to a standardized restaurant (KFC, Dicos, McDonald's, whose oil temperature control is better), or simply do it yourself.
2. Fried food
There is nothing terrible about fried food itself. You can eat properly if you like, but you should pay attention to a balanced diet. For example, if you often eat fried food, you should pay more attention to maintaining your liver and kidneys. Of course, it is recommended to eat less if you are slightly fat or above.
I hope it helps you! Feel free to ask me any questions!