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. 
In conclusion, be “heads up” during your daily life and be mindful of whether you feel anabolic or catabolic. Think about it…for example; you wake up, don’t eat, rush outta the house, stop off and get coffee before work, the boss yells at you…CATABOLIC. You just put yourself in a catabolic state now for half of the day until you eat a high protein meal and relax. Keep in mind this goes for men and women! Instead, your day should have gone like this (like mine for example). Some fun before work, eggs and greens and grains for breakfast, get to work, go to the gym, have a protein shake and some juice all before 2 pm..Big difference than the first example I gave you. It is a matter of choice and life style. Notice, I didn’t take any dumb ass pre workout or drink coffee.
For children, these reactions should not be in balance. In a child, the anabolic reactions have to be greater than the catabolic. Boys start their growth spurt after girls. That’s why when they are in 7th or 8th grade, the girls are still taller than the boys. The boys change a couple years after the girls. Guys may gain 2-3 inches in that growth spurt between 14-17 years of age. During that growing period they will eat up all the food in your refrigerator. They are growing like crazy during that time. But what happens to both boys and girls at 18-19 is that if they keep eating the same way, they won’t grow taller anymore but only wider. This is the phenomena everybody notices.