So, in establishing physiology, pharmacology, clinical results and safety, zinc is a good choice when you look at cost and side effect profile as well as ease of availability and interaction profile with other meds and other medical conditions. Having said all of this, there is no bulletproof evidence out there guaranteeing that increasing your zinc consumption either in food or via a supplement will improve ED or increase libido. Even if a patient experiences an increase in testosterone from such a supplementation, this is not a certain gateway to resolution of theses symptoms as there is more to it than just one hormone level. However for those that are experiencing problems in these areas, it is certainly worth a try for them. The patient should be mindful however that supplements should be treated like any other medication and trying to increase your testosterone shouldn’t be done without consultation with your doctor and pharmacist. You should also check for any interactions with any meds or medical conditions before trying any supplement as well.
Reiter, W. J., Pycha, A., Schatzl, G., Pokorny, A., Gruber, D. M., Huber, J. C., & Marberger, M. (1999, March). Dehydroepiandrostone in the treatment of erectile dysfunction: A prospective, double-blind, randomized, placebo-controlled study [Abstract]. Urology, 53(3), 590-594. Retrieved from http://www.sciencedirect.com/science/article/pii/S0090429598005718
Testosterone levels generally decrease as an individual ages. This is normal and natural, but it can lead to erectile problems for some people because androgenic hormones such as testosterone play an important part in regulating the function of tissues in the penis and testicles. One study found that supplementing with testosterone gel improved both the libido and erectile function of participants with low testosterone between the ages of 32 and 84.
A 2011 study of 160 men with moderate or severe erectile dysfunction divided the group in two—80 men were given niacin supplements, and 80 a placebo. The group given niacin reported improved ability to “maintain an erection versus the control group.” It’s not exhaustive research, but still promising. The best part about niacin is that it’s naturally found in foods like turkey, avocado, and peanuts (yum). If you’re not a turkey sandwich fan, you can supplement with a vitamin B complex.
According to the Centers for Disease Control and Prevention, ingesting levels of zinc in excess of the recommended dietary amount will result in diarrhea, vomiting, and stomach cramps. The maximum amount of daily zinc consumption recommended is 40 milligrams per day. Symptoms of too much zinc intake include nausea and headaches. If you have reason to suspect you have ingested too much zinc, contact a medical professional.