Antioxidants boost nitric oxide production and prevent NO breakdown. Ascorbic acid has direct effects on the bioactivity of NO, and augments NO production in a variety of body processes. The effects are actually synergistic with Vitamin E. Both vitamins are not usually measured, and a reasonable dose of Vitamin C is 500 to 1,000 mg daily. Vitamin E supplementation should be limited to <400 IU per day because of potential adverse long-term health effects of higher doses.
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.  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:
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.
You can find this compound as a standalone ingredient in capsule, tablet, or tea form as well as a component of popular pre-workouts and fat burners. Yohimbine is not for everyone - even with moderate dosages it can increase the frequency and severity of panic attacks in high-anxiety individuals, interfere with medications, as well as cause headaches, dizziness, and nausea.
Thirty two male rats were randomly assigned to four groups and submitted to one of the following daily treatment regimens: (a) 1 mg of ZnSO4 dissolved in 1 ml of distilled water. (b) 5 mg of ZnSO4 dissolved in 1 ml of distilled water (c) 10 mg of ZnSO4 dissolved in 1 ml of distilled water. Controls were provided with 1 ml of distilled water. Supplementation was done orally using a feeding tube. These daily regimens were continued for two weeks (daily at 17.00 hours) and housed two per cage.
Your doctor will ask you questions about your symptoms and health history. They may do tests to determine if your symptoms are caused by an underlying condition. You should expect a physical exam where your doctor will listen to your heart and lungs, check your blood pressure, and examine your testicles and penis. They may also recommend a rectal exam to check your prostate. Additionally, you may need blood or urine tests to rule out other conditions.
Health benefits and risks of copper Copper is an essential trace mineral that occurs in all body tissues. It is vital for a range of body functions including the production of red blood cells and energy, and the maintenance of nerve cells and the immune system. A copper deficiency can be harmful, but too much can be toxic. Learn more about copper here. Read now
In addition, when research has shown a nutrient such as zinc or niacin to improve sexual function, it's usually in people who are deficient in it. So, before you stock up on over-the-counter nutritional supplements for ED, speak with your doctor. He can test you for deficiencies and steer you toward the most effective and safest way to treat your erectile dysfunction.
When given orally, yohimbine reaches peak levels in 10–15 min, and the half-life is 0.6 h. The efficacy of yohimbine in sexual function has been questioned, perhaps because of early questionable multidrug preparations.10,11 Yohimbine has been shown to have some effect on psychologic erectile dysfunction12,13 and in reversing fluoxetine-induced sexual dysfunction.14
So what causes erectile dysfunction? Sometimes it is a circulation problem. Sometimes it is a low testosterone issue. Sometimes it is not. Testosterone (T) supplementation can help ED and low libido in cases of low T and even if there is a normal T level at baseline, ED can be helped. In cases where thyroid under or overactivity is causing T levels to be less than optimal. Aging is also a problem as T levels drop after mid 20’s and as adipose tissue increases and aromatase enzyme conversion of T to Estrogen correspondingly increases. This causes an unfavorable E:T ratio which equates to low T.
Selenium, found in Brazil nuts, liver and oysters, is a trace mineral that plays an important role in hormone health. You only need a tiny bit for healthy sperm, but a tiny deficiency can be catastrophic for reproductive health. In one study, men who had lower testosterone and were infertile also had significantly lower selenium levels than the fertile group. Supplementing with the mineral improved chances of successful conception by 56 percent. And a second British Journal of Urology study that included 69 infertile men with low levels of the mineral, found selenium supplementation could significantly improve sub-par sperm motility associated with testosterone deficiency. Check out these 7 Testosterone-Boosting Foods!
Low levels of zinc can be the cause for a variety of health-related problems. Zinc is a key mineral that cells use to metabolize nutrients. Immune function, DNA and protein production, and cell division are all related to zinc levels in the body. Zinc also enables the male body to produce testosterone. Because of this, your levels of zinc may affect erectile dysfunction.