You simply need to alias the field names using the AS statement, eg:
PRFOOD as Food,
PRDRINKS as Drinks,
PRFLAVORS as Flavors,
When I have many many fields that I have to do this sort of thing for I tend to paste the field list into Excel then in an adjoining cell have an expression to build the load script for me, eg:
=CONCATENATE(" ", A1, " AS [", PROPER(MID(A1, 3, 99)), "],")
This can then be copied down for each field in Excel, the column containing all the values can then be copied and pasted directly into your load script.
Hope that helps,