Okay, so the most important thing concerning water retention is aromatization of testosterone into estrogen. The ratio of testosterone to estrogen is what determines how severe your chances are for developing serious estrogenic affects such as gyno. So what do you do if you are one of the unlucky few who are susceptible to gyno? What if you just want to use strong drugs but don't want the water? What if you are prone to "potato" head syndrome and seem to bloat up no matter what? Your answer lies in proper use and understanding of anti-estrogen and anti-aromatase drugs.
Heavy consumption of the essential amino acid lysine (as indicated in the treatment of cold sores) has allegedly shown false positives in some and was cited by American shotputter C. J. Hunter as the reason for his positive test, though in 2004 he admitted to a federal grand jury that he had injected nandrolone.  A possible cause of incorrect urine test results is the presence of metabolites from other AAS, though modern urinalysis can usually determine the exact AAS used by analyzing the ratio of the two remaining nandrolone metabolites. As a result of the numerous overturned verdicts, the testing procedure was reviewed by UK Sport . On October 5, 2007, three-time Olympic gold medalist for track and field Marion Jones admitted to use of the drug, and was sentenced to six months in jail for lying to a federal grand jury in 2000.