What are the shopping requirements?
The FL4I menu consists of regular food which you can find in any market. There are no special or expensive ingredients so it should not be more expensive. You eat foods like eggs, vegetables, fruits, meat, fish andbeans. We have not found a single complaint about high grocery bills. Here is what Jules says (from caloriesperhour.com/forums/forum3/5663-6.html)
I actually found I spent less on groceries. The meals are so structured that I had no waste food, as I used all that I bought during the course of the week. I think you can do this program with no problem on your given budget.