I've been told the same thing, as I have been diagnosed with "Essential Hypertension 2" (basically high blood pressure) and I'm 21. After discussing this with my doctor he is concerned with all the protein and creatine and now I get to have these wonderful blood tests ran to check up on my kidneys and such. I would seriously think about what your doctor has told you b/c they can go with further tests looking for renal artery stenosis and such and having radioactive materials injected into you and having your insides glow isn't much fun.. just my .02