Working out in the morning and fasting until afternoon/evening

Hey i'm trying to start working out in the morning cause it just makes my day easier, but i'm wondering what will happen if i eat at 2pm (when i eat 2 meals) or just eat at night, will it hurt my gains?

I have heard it recommended to eat like 30g of BCAA's a day to make up for that but i simply can't afford that, the other option is of course just to consume my protein shake like i normally would after the workout and then just eat at night (but then all benefits go out the window of course)

edit: another option is of course to like fast one day a week but i don't know the benefits of this, if anyone would care to give experiences on this?