In a recent column, Poliquin notes: "If your urine reeks after eating asparagus, congratulations! You officially have a genetic defect and can't methylate asparagine properly. Apparently, prevalence of this defect is on the rise in the US and is a red flag for Parkinson's disease, Alzheimers, and prostate cancer amongst others. Try jacking up your methyl donors such as folic acid and B12 to turn off that gene."
Interesting observation. My urine always reeks after eating asparagus. Lately I have been eating it and didn't notice the smell. The difference is I've been drinking a couple of Spike Shooters a week. Shooters, as you might know, have over a gram of B12.