l-carnitine side effects fishy odor seizures Trimethylaminuria: Definition, symptoms, and more Role of L-carnitine in Cardiovascular
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doi: 10.5644/ama2006-124.94

Citrulline : A 2011 study found citrulline to improve ED symptoms, although citrulline was less effective than PDE5 inhibitors

Haque R, Shi J, Schottinger JE, Ahmed SA, Cheetham TC, Chung J, et al
Finally, the present study found, by assessing the reliability of subgroup analyses, that almost all subgroup analyses were unreliable, limited by the fact that both the number of included studies and the sample size were small
