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 steroid 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. 
Whether you want a Testosterone Cycle, Cutting, Bulking up or a Weight Loss Cycle , you should make the right choice before you start. Make sure that you decide if you want to cut, lose weight, or gain muscle. Maybe even lose weight and gain muscle all at the same time.
A healthy diet along with a good protein supplement will greatly improve performance in any good Cycle. Remember that by losing fat around the body you will increase your strength to mass ratio and improve lean muscle tissue, giving you that lean physique appearance.
Bulking and Cutting Cycles - Those individuals who already have a lean physique wont achieve fat loss gains as quickly as those with more weight and therefore would more than likely opt to go for a combined all in one Bulking and Cutting Cycle to start with.
Many abusers who inject anabolic steroids may use nonsterile injection techniques or share contaminated needles with other abusers. In addition, some steroid preparations are manufactured illegally under nonsterile conditions. These factors put abusers at risk for acquiring lifethreatening viral infections, such as HIV and hepatitis B and C. Abusers also can develop endocarditis, a bacterial infection that causes a potentially fatal inflammation of the inner lining of the heart. Bacterial infections also can cause pain and abscess formation at injection sites.