27. Haahr MK, Jensen CH, Toyserkani NM, et al. Safety and Potential Effect of a Single Intracavernous Injection of Autologous Adipose-Derived Regenerative Cells in Patients with Erectile Dysfunction Following Radical Prostatectomy: An Open-Label Phase I Clinical Trial. EBioMedicine 2016;5:204-10. 10.1016/j.ebiom.2016.01.024 [PMC free article] [PubMed] [CrossRef]
Erectile dysfunction (ED) is a common occurrence in society with a prevalence of about 26 cases per 1,000 patients [1]. This equates to about 150 million cases of ED worldwide. It is a condition where patients are unable to maintain adequate blood flow into their penis to sustain an erection. As a person ages, the probability of having ED grow but no age group is safe from this condition. In a study of Romanian men, it was determined that about 3 percent of males aged 15 to 25, 7 percent of males aged 25 to 45 and 22 percent of males 45 to 65 had ED [2]. Once a man reaches 70, ED can be seen in 84 percent of the elderly. In most cases, ED is a condition that manifests because of a much larger systemic disease. Some of the most common risk factors include cardiovascular disease, hypertension, diabetes mellitus, tobacco use, hyperlipidemia, metabolic syndrome or depression [3].
A cold slice of watermelon can do more than just satisfy thirst and hunger during the warm summer months; it can help with bedroom satisfaction. Citrulline, the amino acid found in high concentrations of watermelon, is found to improve blood flow to the penis. A 2011 study revealed men who suffered from mild to moderate ED and took L-citrulline supplementation showed an improvement with their erectile function and were very satisfied. Natural watermelon juice, or “nature’s Viagra,” can also be easier on the stomach, since taking pills like Viagra can cause nausea and diarrhea.
In a study done to determine if vitamin D supplementation would actually help patients with ED, 143 patients with ED were tested to determine vitamin D levels. It was found that of these cases, 46 percent of patients suffered from substantial vitamin D deficiency and only 20 percent were found to have adequate levels of vitamin D. In these cases, it was also determined that inadequate arterial blood flow was the root cause of ED more commonly in patients with low vitamin D levels. [8] Vitamin D supplementation can improve both these parameters. 
Erectile dysfunction (ED) is the inability to achieve or maintain an erection sufficient for intercourse. Because ED can have a strong psychological component, counseling with a psychotherapist or sex therapist often works. However, more often ED is a symptom of cardiovascular disease and diabetes, both of which can impair blood supply to the penis. In addition, many medications interfere with sexual functioning.
Besides mammalian organs, insects and arthropods are also consumed as aphrodisiacs in Eastern medicine. These include scorpions, spiders, beetles, flies and other bugs (32). Penile erections can be observed following administration of neurotoxins as it causes repetitive firing of the somatic, sympathetic and parasympathetic neurons, resulting in autonomic and neuromuscular over-excitation. Scorpions are often used as an ingredient found in herbal wines. However, there is a general lack of literature regarding the consumption of scorpion neurotoxins for potency.
A recent study found that men with erectile dysfunction who ate pistachio nuts every day for three weeks experienced significant improvement in sexual issues, including ED, sexual desire, and overall sexual satisfaction. The benefits of pistachios for erection problems may be due to a protein called arginine, which may help relax blood vessels. "This is another example of how good circulation is good for sexual health, which is good news because I eat a lot of pistachios," says Dr. Daneshgari.

Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

Pay attention to your vascular health. High blood pressure, high blood sugar, high cholesterol, and high triglycerides can all damage arteries in the heart (causing heart attack), in the brain (causing stroke), and leading to the penis (causing ED). An expanding waistline also contributes. Check with your doctor to find out whether your vascular system — and thus your heart, brain, and penis — is in good shape or needs a tune-up through lifestyle changes and, if necessary, medications.


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
Turns out that good ol’ P.B. is an aphrodisiac in disguise. It’s rich in two nutrients that are key to good bedroom performance: Niacin (with a quarter of your recommended daily value in two tablespoons) and vitamin E (75% of your DV in that same serving). In a study printed in the Journal of Sexual Health, men suffering from impotence who took a niacin supplement reported a significant improvement in their bedroom prowess compared to men who took a placebo. Peanut butter is also a good source of folate, which improves sperm quality. Click here to see our top 16 Nut Butters for Muscle Building and Weight Loss!
ED is caused by vascular, hormonal, neurogenic, pharmacological, or psycho-genic factors. Performance anxiety where the person fears failing in a sexual scenario is a common psychogenic cause for ED.3 Neurogenic causes are related to diseases like Alzheimer's, Parkinson's, stroke or spinal cord injuries. Radical removal of the prostate (also called prostatectomy) is the cause of nerve-related ED as nerve injury is possible despite advances in surgical methods.4

Just because a product claims to be natural doesn't mean it's safe. Many herbal remedies and dietary supplements can cause side effects and dangerous interactions when taken with certain medications. Talk to your doctor before you try an alternative treatment for erectile dysfunction — especially if you're taking medications or you have a chronic health problem such as heart disease or diabetes.
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