Between 2001–2006, one-third of the US population had insufficient amounts of vitamin D, according to the Institute of Medicine. Risk factors for vitamin D deficiency include obesity and high BMI, not enough sun exposure or outdoor activity, having darker skin and suffering from certain from inflammatory conditions like Crohn’s disease. You can get a blood test to find out if you’re vitamin D deficient.
So, how to increase the sexual potency? Firstly, get rid of bad food habits and revise your diet consuming more foods rich in zinc, protein, vitamins, and essential fatty acids. Often, the opponents of vegetarian diet and raw food diet argue that vegetarianism/veganism and sex are incompatible. Moreover, they assert that abstinence from meat leads to a substantial decrease in male potency. Allegedly, to make a sex life active, the male diet must necessarily include meat. And more is better. In fact, this is not true. The main thing is to ensure that you get all essential nutrients from food. And the foods of plant origin are a great source of these nutrients. Let’s consider the issue in more detail.
Penile implants - are generally used if physical damage (like an accident) makes the anatomical parts needed for an erection not work. These are inserted by surgery and can provide a permanent treatment choice if others fail to work. The implants can be semi-rigid or inflatable. They can be pretty expensive and are not usually available on the NHS.
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. 

To understand the physiology of erectile dysfunction, we need to know erection first. An erection occurs when impulses from the brain and genital nerves cause blood to fill the two chambers known as the corpora cavernosa in the male penis. This causes the penis to expand and stiffen. Anything that blocks these impulses or restricts blood flow to the penis can result in ED. This block may be caused by psychological, neurologic, hormonal, arterial, or cavernosal impairment or even from a combination of all these factors.3

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
Erectile dysfunction can occur as a side effect of medication taken for another health condition. Common culprits are high blood pressure meds, antidepressants, some diuretics, beta-blockers, heart medication, cholesterol meds, antipsychotic drugs, hormone drugs, corticosteroids, chemotherapy, and medication for male pattern baldness, among others.
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