From books online:
To build a recommendation of the optimal set of indexes, indexed views, or partitions for your databases, Database Engine Tuning Advisor requires a workload. A workload consists of a Transact-SQL script or a SQL Server Profiler trace saved to a file or table. If you are using a SQL Server Profiler trace file or table, they must contain Transact-SQL batch or remote procedure call (RPC) event classes, and the Event Class and Text data columns.
That's the only requirements. More columns or events will just bloat the trace file without providing any benefit.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability