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. 
For those individuals sensitive to aromatization and/or Estrogenic effects, it may be a wise idea to steer clear completely of any aromtizable compounds. However, it is a prime important rule that Testosterone be an essential inclusion in every single cycle for many important reasons. However, there is no necessity to run it at a supraphysiological bodybuilding dose. At higher and higher doses above normal physiological levels, the aromatization rate increases significantly. The solution is therefore to merely utilize Testosterone at TRT ( Testosterone Replacement Therapy ) dosages, which normally hover in the range of 100mg per week, and medical protocols call for 250mg once every four weeks. In using such a strategy, an individual who wishes to avoid any skyrocketing levels of Estrogen during an anabolic steroid cycle can utilize Testosterone at the previously mentioned dosage whilst running higher bodybuilding range dosages of other non-aromatizing compounds. Effectively, aromatization will be kept to a minimum and the user can enjoy a cycle that brings with it lean gains with little risk of estrogenic side effects, and a low requirement to utilize anti-Estrogens throughout the cycle unless absolutely required.