Okay ive got a bunch of Clen that I dont need because starting a long ass bulking cycle. So I'm going to sell it to my friend who is trying to lose some weight. But before I sell him the Clen I want to get him on the proper diet and work out plan for a couple months or so (we'd be idiots if we didnt haha).

So I've never had to lose weight or cut or anything because I've always been a skinny son of a bitch. What I need to know is what is the best diet for my friend?

His Stats:
Height: 5'10''
Weight: 210
Bf%: unknown but both agree way higher than it should be
Work out plan: Trains with me and I am on a football training plan

any help would be great!