The final study we will be examining in this article took a novel approach to by dosing 16 healthy male subjects with 7.7 milligrams of yohimbine tartrate and 6 grams of L-arginine glutamate and comparing it to a placebo. Depending on their group each subject was randomly assigned to consume the placebo one week and the novel compound the other week.
Three subsets (eight in each subset) of sexually experienced adult male rats were supplemented with three different oral doses of zinc sulphate (a daily dose of 1 mg, 5 mg and 10 mg respectively) for two weeks. A subset of eight animals without zinc supplementation was used as the control group Sexual behavior was observed by placing them individually in cages with receptive females.
Researchers found that this compound, delivering 6mg of yohimbine HCL and 3.25g of L-arginine, significantly improved erectile function in those with mild-to-moderate ED.  L-arginine is an amino acid that acts as a precursor to and plays a critical role in nitric oxide production. Yohimbine paired with a compound encouraging nitric oxide production may be the perfect combination for significantly decreasing or eliminating symptoms of erectile dysfunction.
Erectile dysfunction (ED) is one of the most common sexual problems that men deal with. There are a host of different causes of ED that range from nutrient deficiencies to clinical depression. It’s important to talk to a medical professional about ED, in order to determine the cause of the issue before exploring treatment options. That said, erectile dysfunction has been found in recent years to be a symptom of zinc deficiency.