Supplements and Urinalysis Testing

[Longhorn85]

Has anyone taken a urinalysis test and had abnormal or suspect readings based on supplement ingestion?

I got called this morning for a random piss test right after I downed a whey protein shake. That's all I take right now, not even creatine anymore.

I indicated that I was taking extra protein in the notes section of the urinalysis sheet.

I don't expect any problems-never had any, just wondering if an large presence of protein is a flag for sometype of substance abuse.