You must eat breakfast, otherwise it will affect your metabolism and slowly lose weight.
I tried it for a month. I got up early and jogged for 30 minutes. I had breakfast, lunch and dinner on an empty stomach. I lost 6 pounds in the first week ~ I ate snacks in the second and third weeks, and I lost 5 pounds in the second and second weeks because I was used to not eating lunch before ~
It might be better if you increase your exercise.