This is one B team you want to get on pronto: A recent report from Harvard University highlighted a study that has linked low levels of B12 to erectile dysfunction. A causal link hasn’t been nailed down, but the B vitamin is used by every system in the body, particularly in cell metabolism and the production of blood — two essential factors in getting and keeping a quality erection.
In the 18th century, Spain embraced the Age of Enlightenment, directing the beacons of thought to all endeavors. But while Spain was not as advanced as France, Britain, Germany, or America, its new political thinking led to the revocation of most of the historical rights and privileges of the sub-kingdoms that comprised the Spanish Crown. Those changes, in turn, allowed for the freedom of inquiry that was so needed for medical discovery, among others.
Though higher doses of zinc reduce libido, supplementation with a medium dose (5 mg/day) has some beneficial effect on the sexual competence of adult male rats. The major significant effects of this dose of zinc are prolongation of ejaculatory latency without disturbing sexual arousability, motivation, penile erection and sex vigor. Also, the partner preference index of the 5 mg/day group was positive and comparable to the controls. A positive partner preference index is indicative of unchanged sexual interest of males.[16] These results confirmed that libido and sexual interest are not affected by zinc supplementation with a 5 mg/day dose. However, mild reduction in percentage of intromission was observed in this group and it is postulated that this may be situational rather than an effect of supplemented zinc. This is based on our observation where mild rejection by the females at the initial phase of the behavior led some males to refrain from sexual activity.
Due to its ability to inhibit actions of the sympathetic nervous system, yohimbe can help to bring blood pressure levels back to balance. This is is why it’s used to sometimes increase blood flow, such as to tissues of the reproductive organs.  Or, also why it’s used to treat hypotension (abnormally low blood pressure). It may also be helpful for stimulating nerves and treating fatigue or symptoms of depression.
Men, aged 40–80 y, were recruited from new consultations seen for erectile dysfunction at the Lahey Clinic Center for Sexual Function. Patients were screened by history and physical examination and by evaluation of nocturnal penile tumescence and rigidity with the RigiScan™ (Timm Medical Technologies, Inc., Minneapolis, USA). Candidates completed a sexual questionnaire and had morning blood tests for luteinizing hormone (LH), free testosterone, cortisol, dehydroepiandrosterone sulfate and androstenedione. Inclusion criteria included normal initial serum testosterone and prolactin levels and the presence of an organic cause of erectile dysfunction manifested by abnormal nocturnal tumescence and rigidity testing with the RigiScan™ monitor. Active smokers and men with concurrent major psychiatric problems were excluded. No other treatment for erectile dysfunction was permitted during the study. Yohimbine hydrochloride (supplied by Palisades Pharmaceuticals, Palisades, NJ, USA) was started at a dose of 5.4 mg three times a day (tid) for 4 weeks, after which the sex questionnaire was administered again and blood tests, nocturnal penile tumescence and rigidity testing were repeated. The dose of yohimbine then was increased to 10.8 mg tid for 4 additional weeks followed by a third administration of the sex questionnaire and final measurements of hormone levels and nocturnal penile tumescence and rigidity monitoring.

Many studies have been conducted on this topic; their results have been challenged by lack of controlled groups and non-randomization. Randomized controlled trials (RCTs) are generally accepted as the most valid method for determining the efficacy of a therapeutic intervention, because the biases associated with other experimental designs can be avoided.Non-randomized controlled trials, can detect associations between an intervention and an outcome. But they cannot rule out the possibility that the association was caused by a third factor linked to both intervention and outcome. Random allocation ensures no systematic differences between intervention groups in factors, known and unknown, that may affect outcome. Randomized controlled trials are the most rigorous way of determining whether a cause-effect relation exists between treatment and outcome and for assessing the cost effectiveness of a treatment (45, 22).
There have been only a few  well-controlled studies to test the effects of herbal yohimbe (as opposed to medications) on humans. There’s some evidence that yohimbine has potential to enhance the nitric oxide pathway, helping to bring blood flow to the corpus cavernosum tissue of the penis. It may also stimulate the pelvic nerve ganglia and boost adrenaline supply to nerve endings. It seems to have the most effects overall when combined with other treatments or herbal remedies. (6) One study that evaluated the effects of yohimbe on ED found that those taking the herbal remedy experienced slight benefits compared to a control group that was not taking the supplement.
To maximize efficacy, you should consume this stack in a fasted or semi-fasted state and at least 6 hours before bedtime. This stack is going to significantly increase your heart rate and blood pressure so be watch out for overexertion if you choose to take the ECY stack immediately before an intense weightlifting session. Some users also choose to alternate consuming EC and EY to obtain some of the positive effects without being overstimulated.

The phrase “use it before you lose it” can be applied when it comes to helping men with ED regain normal erectile function. Pelvic exercises, more commonly known as kegel exercises, are used to promote urinary continence and sexual health. They help to strengthen the bulbocavernosus muscle, which does three things: allows the penis to engorge with blood during erection, it pumps during ejaculation, and it helps empty the urethra after urination, according to Healthline.


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.
Ancient Incans consumed this energizing Peruvian plant before battle or a bout of sex, Chris Kilham, an ethnobotanist at the University of Massachusetts at Amherst, told Outside Online. Maca increases sexual appetite, stamina, endurance, and fertility. One 2008 study conducted at the Depression Clinical and Research Program at Massachusetts General Hospital in Boston found that maca helped people with antidepressant-induced sexual dysfunction to regain their libidos.

With an inflatable implant, fluid-filled cylinders are placed lengthwise in the penis. Tubing joins these cylinders to a pump placed inside the scrotum (between the testicles). When the pump is engaged, pressure in the cylinders inflate the penis and makes it stiff. Inflatable implants make a normal looking erection and are natural feeling for your partner. Your surgeon may suggest a lubricant for your partner. With the implant, men can control firmness and, sometimes, the size of the erection. Implants allows a couple to be spontaneously intimate. There is generally no change to a man's feeling or orgasm.


A mineral involved in muscle development, muscle is essential for reproductive function in men of every age and activity level. One study that compared athletes to non-active individuals found that supplementing with 22 mg magnesium per pound of body weight of the course of four weeks raised testosterone levels in both groups. And two separate studies, one on a group of men over the age of 65 and a second on a younger 18-30-year-old cohort, present the same conclusion: levels of testosterone (and muscle strength) are directly correlated to the levels of magnesium in the body. These are the best foods for magnesium!
There’s some concern that supplements labeled as yohimbe contain different amounts of the active ingredient than the amount that’s listed. The FDA strictly regulates prescriptions containing yohimbine but not supplements. It can be difficult to determine exactly how much active yohimbine is in supplements due to how different growing and distributing variables affect the concentration. These variables can include: the exact type of yohimbe tree bark that is used, what part of the tree the bark is taken from, the maturity of the tree, how fresh the bark is, the processing techniques used to create supplements, and how the supplements are shipped/exported and stored. (16)
Vitamin B5 (Pantothenic acid) is irreplaceable if you wish to increase life expectancy. Vitamin B5 has a positive impact on the nervous system and intestinal motility. Calcium pantothenate is a form of vitamin B5 that has a powerful anabolic effect, enhances the synthesis of steroid hormones, and takes part in the synthesis of coenzyme A. In addition, calcium pantothenate helps release energy from foods. So, to a large extent, it improves your body’s endurance and stamina, as well as increases human tolerance to different loads.
If you bike a lot and have a very narrow saddle on your bicycle, consider switching to a "no-nose seat" which is wider at the back than a conventional saddle, allowing more of your weight to be distributed to the sitting bones. Make sure the seat is level or angled slightly downward and at a height that allows your knee to be just slightly bent at the bottom of the pedal cycle. Raising the handlebars on your bike so that you're sitting upright may also help.
Aids in fat loss: Yohimbe and other alkaloids in the bark extract are said to block specific receptors that actually inhibit fat loss. A three-week study in 1991 observed 20 obese females on 1,000-calorie diets. They were given 20 mg of yohimbe each day and lost three pounds more than the group receiving placebos. Not a drastic weight loss, but enough to give experts hope that yohimbe can help with weight loss. Other studies have found that yohimbe increases the amount of non-esterified fatty acids, a result of fat breaking down. More research is needed. Most other studies in the field are done using the drug yohimbine. Extracted chemicals are not the same as yohimbe bark. Studies with yohimbine are expected to give different results than studies that used the raw plant.
Whether you’re looking to bulk up, or are just concerned about having enough protein to keep your body strong and healthy, zinc is an absolute must have! When we eat protein, it gets broken down by the body into amino acids, and then resynthesized into the different proteins needed by the body, and zinc is a vital part of this process. So even if you are eating lots of protein, without zinc you won’t be able to use it properly!
According to the FDA (Food and Drug Administration), many of these products sold on the internet contain potentially harmful compounds. And they aren’t listed on the label. In an investigation, the FDA found that one-third of these online supplements were laced with undisclosed ingredients. This includes sildenafil—the active ingredient in Viagra. Doctors prescribe Viagra to some patients, but it’s not safe for everyone. The drug could interact with other medications and lower your blood pressure to dangerous levels. This makes ordering supplements online risky. You don’t know whether they contain sildenafil or other ingredients that could harm your health. 

Some men say certain alternative medicines taken by mouth can help them get and maintain an erection. However, not all “natural” medicines or supplements are safe. Combinations of certain prescribed and alternative medicines could cause major health problems. To help ensure coordinated and safe care, discuss your use of alternative medicines, including use of vitamin and mineral supplements, with a health care professional. Also, never order a medicine online without talking with your doctor.
A yohimbine HCL dosage of 0.2 milligrams per kilogram of bodyweight taken on an empty stomach immediately upon waking or in-between meals ramps up fat oxidation without causing undesirable side effects like high blood pressure or racing heart. [3] The table below provides a guideline on how many 2.5mg capsules of yohimbine HCL you should take based on your weight and the recommended dosage:
It’s easy to see how erectile dysfunction subsides with exercise. Not only does it help reduce cardiovascular risk factors, but it’s also been shown to reduce stress, another cause of the condition. The best part is that it doesn’t take much effort to get started on an exercise routine. “When it comes to exercise, there is no one-size-fits-all approach,” co-author Dr. Stephen Freedland said in the release. “However, we are confident that even some degree of exercise, even if it’s less intense, is better than no exercise at all.”
It's also important to remember that your mental health plays as much a part of your sexual ability as your physical health. Stress and other mental health concerns can cause or make erectile dysfunction worse. Minor health problems may slow your sexual response, but the accompanying anxiety that comes with the slow sexual response can shut things down entirely.
There have been only a few  well-controlled studies to test the effects of herbal yohimbe (as opposed to medications) on humans. There’s some evidence that yohimbine has potential to enhance the nitric oxide pathway, helping to bring blood flow to the corpus cavernosum tissue of the penis. It may also stimulate the pelvic nerve ganglia and boost adrenaline supply to nerve endings. It seems to have the most effects overall when combined with other treatments or herbal remedies. (6) One study that evaluated the effects of yohimbe on ED found that those taking the herbal remedy experienced slight benefits compared to a control group that was not taking the supplement.
In the statistical analysis, the difference between the pre-test and post-test values (changed score) for IIEF score was computed. Student t-test was used to compare the mean changed score values of IIEF. All statistical analysis was performed on an IBM compatible micro computer using SPSS for window version 15.0, (Chicago IL, USA). The probability level for all the above tests was set at 0.05 to indicate significance.
Yohimbine has had questionable effects in men with organic erectile dysfunction. We conducted this study to better define the population of men responsive to yohimbine, because tobacco was thought to affect a regimen of yohimbine more than other risk factors. We measured nocturnal penile tumescence with the RigiScan™ monitor, hormone profiles, answers to the Florida Sexual Health Questionnaire, and clinical responses at baseline and after two different doses of yohimbine in 18 nonsmoking men with erectile dysfunction. Of the 18 men, nine (50%) were successful in completing intercourse in more than 75% of attempts. The yohimbine responders were men with less severe erectile dysfunction as manifested by improved increased rigidity on RigiScan™ testing, higher Florida Sexual Health Questionnaire scores, and slightly higher levels of serum testosterone. Yohimbine is an effective therapy to treat organic erectile dysfunction in some men with erectile dysfunction.
The group treated with the lower concentration of zinc (1 mg/day) did not show an alteration in any of the observed parameters. However, supplementation with a dose of 5 mg/day per rat caused substantial prolonged ejaculatory latency and increased in number of penile thrusting. The other parameters studied remained unchanged indicating uninterrupted libido, sex vigor and performance. Majority of male rats (75 %) showed the prominent actions of sexual behaviour (mount, intromission and penile thrusting) and did not ejaculate within the 15-minute observation period.
According to the FDA (Food and Drug Administration), many of these products sold on the internet contain potentially harmful compounds. And they aren’t listed on the label. In an investigation, the FDA found that one-third of these online supplements were laced with undisclosed ingredients. This includes sildenafil—the active ingredient in Viagra. Doctors prescribe Viagra to some patients, but it’s not safe for everyone. The drug could interact with other medications and lower your blood pressure to dangerous levels. This makes ordering supplements online risky. You don’t know whether they contain sildenafil or other ingredients that could harm your health. 

Erectile dysfunction obviously can be frustrating, but it can also be an important warning sign of potential heart disease risk. Once you rule that out, there are natural things you can do to improve it. For more information on how to take control of ED, contact Tack180 for a free consultation. Our experts in nutrition, stress management, behavioral psychology, and fitness go beyond the usual counsel to address your particular vulnerabilities.
Acupuncture may help treat psychological ED, though studies are limited and inconclusive. You’ll likely need several appointments before you begin to notice any improvements. When choosing an acupuncturist, look for a certified practitioner who uses disposable needles and follows U.S. Food and Drug Administration guidelines for needle disposal and sterilization.
Oysters are also a great source of zinc, with just 3 ounces providing 493% of your recommended daily intake. In fact, oysters are so rich in zinc that eating too much can cause an accidental zinc overdose, so just be wary of this. Bear in mind as well that oysters are a common source of food poisoning, and they are also very high in cholesterol – might be best to stick to your nuts and seeds!
A study from the University of the West in the United Kingdom found that pelvic exercises helped 40 percent of men with ED regain normal erectile function. They also helped an additional 33.5 percent significantly improve erectile function. Additional research suggests pelvic muscle training may be helpful for treating ED as well as other pelvic health issues.
Response to yohimbine was not dependent on patient age. Patients who showed a positive response had fewer medical risk factors overall, although the small number of patients was not large enough to provide statistical significance. The positive clinical response was verified subjectively both by the formal questionnaire and by the in-office clinical encounter. The positive response was verified objectively by measuring nocturnal penile tumescence and rigidity with the RigiScan™ home monitor. The trend of the baseline penile erectile response was better in the responders, suggesting that use of yohimbine might be more effective in patients who have less severe erectile dysfunction. Some authors have questioned the effect of yohimbine on penile activity, but either inadequate doses of yohimbine were used or only tumescence was measured,21,32 often in an office setting where anxiety and embarrassment might affect results.
The concentration of yohimbine in commercial supplements may vary from one manufacturer to another. A chemical analysis conducted on 26 brands of yohimbe supplement shows that nine products contain no yohimbe extract at all, while eight products contain only small amounts of yohimbine — approximately 0.1 to 1 parts per million (ppm), which is significantly low compared to 7,089 ppm yohimbine in an authentic yohimbe bark.3

Certain drugs can also deplete zinc levels, including: ACE inhibitors, thiazide diuretics and acid-reducing drugs like Prliosec and Pepcid. Eating a high grain diet in which the grains have not been pre-soaked or sprouted, can also inhibit the uptake of zinc in the body, due to the phytic acid content. Soaking or sprouting grains and rinsing off the soak-water prior to cooking significantly reduces the phytic acid content in grains.
The Medline (Pubmed) electronic database was searched (from June 1972 to November 2010) for systematic reviews that evaluated the effects of therapeutic exercise on ED. The key words and search terms used to develop the search strategy for each of these databases included: exercise therapy, aerobic exercise, therapeutic exercise, rehabilitation exercise, impotence and erectile dysfunction. In addition, the electronic searches were supplemented by checking the reference lists of any relevant identified articles.
E.D. may just be that early warning sign. Erections depend on blood flow, and blood flow depends on nice, wide-open arteries. Atherosclerosis doesn’t just affect the arteries around your heart; if you have plaque build-up, you are likely to have it all around the arterial system — and the penile artery is one of the smallest arteries you have (no matter what you claim about your size). So if you have atherosclerosis, then the plaque there will be one of the first places where you would notice a decline in blood flow.
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