Beta-sitosterol supports natural prostate health, optimal erectile function, and libido. Beta-sitosterol has an impact on the production of dihydrotestosterone (DHT), which in turn has an effect on a healthy prostate.
- Based on the findings during a double-blind, placebo-controlled clinical trial, a team of scientists reported that beta-sitosterol is an effective remedy to help support natural prostate health. Klippel KF et al. A multicentric, placebo-controlled, double-blind clinical trial of beta-sitosterol (phytosterol). British Journal of Urology 1997; 80:427-32
- Beta-sitosterol also helps prevent the enzyme aromatase from converting testosterone into estradiol and the enzyme 5-alpha reductase from changing T to estradiol, thereby working to optimize healthy testosterone levels. Cabeza M et al. Effect of beta-sitosterol as inhibitor of 5 alpha-reductase in hamster. Proceedings of West Pharmacological Society 2003; 46:153-55
Vitamin D3, which is also known as cholecalciferol, is best known as being important for bone health. However, vitamin D3 also appears to play a critical role in prostate health, supporting testosterone health and promoting better mood and energy. Since the majority of people have low levels of this essential nutrient, supplementation with vitamin D3 is encouraged for both sexual and overall health.
- When it comes to prostate health, research suggests that men who have lower levels of vitamin D may be more likely to diminished prostate health. As the authors of one study noted, “Vitamin D therapy is a useful addition to the therapeutic options” among men with reduced prostate health. Newsom-Davis TE et al. The promiscuous receptor. BJU International 2009 Nov; 104(9): 1204-7; also Fibbi B et al. International Journal of Andrology 2010 Jun 1; 33(3): 475-88
- In a study of older men, researchers found that lower levels of vitamin D appeared to be associated with poorer cognitive performance. Lee DM et al. Association between 25-hydroxyvitamin D levels and cognitive performance in middle-aged and older European men. Journal of Neurology, Neurosurgery and Psychiatry 2009 Jul; 80(7): 722-29
- Results of a meta-analysis and population study found that men and women who had low levels of vitamin D had lesser heart health than those with higher levels. Brandum-Jacobsen P et al. 25-hydroxyvitamin D levels and risk of ischemic heart disease, myocardial infarction, and early death. Arteriosclerosis, Thrombosis and Vascular Biology 2012 August online
- In Clinical Endocrinology, researchers reported that a combination of low levels of free testosterone and low vitamin D was associated with a greater risk of dying among older men who had been referred for coronary angiography. Lerchbaum E et al. Combination of low free testosterone and low vitamin D predicts mortality in older men referred for coronary angiography. Clinical Endocrinology 2012 Sep; 77(3): 475-83
- A 2012 study in Clinical Endocrinology noted that vitamin D may help support optimal testosterone levels in men. Nimptsch K et al. Association between plasma 25-OH vitamin D and testosterone levels in men. Clinical Endocrinology 2012 Jul; 77(1): 106-12
- An earlier (2011) study found that vitamin D supplementation resulted in an increase in total, bioavailable, and free testosterone levels of about 3 nmol/liter after one year of taking the supplement. Pilz S et al. Effect of vitamin D supplementation on testosterone levels in men. Hormone and Metabolic Research 2011 Mar; 43(3): 223-25
Avena sativa supplement is better known as wild oats. An extract from oats called avenacosides is reported to enhance the release of luteinizing hormone, which then promotes a natural testosterone response. Wild oats also may boost sex drive and help support erectile function.
- The Institute for Advanced Study of Human Sexuality has examined the efficacy of avena sativa at least twice. One study reported that sexually dysfunctional and impotent men aged 22-64 who took a capsule of avena sativa three days a week for six week experienced improvements in their sex drive, erections, and pleasure levels during sex. Other research conducted in the mid-80s reported that men who consumed avena sativa experienced a 22% increase in genital sensation and a 36% increase in orgasm frequency.
- A graduate school in San Francisco, California has been studying the effects of avena sativa (green oats) on sex drive for a couple of decades. They discovered avena sativa (green oats) works by freeing up testosterone that gets stuck to various compounds in the body. As we age, the bounding-up of testosterone gets worse. Bound testosterone is not as effective as free testosterone in heightening thoughts and pleasure associated with sex. This is true in both males and females. It is also one of the major hormones, along with growth hormone and insulin-like growth factor (IGF) that provides fertile ground for muscle growth.
- One of the first crossover double-blind studies performed involved 75 men and women who had taken Avena Sativa. It showed a significant support for sex drive in men only. The men in the study reported more consistent erections and pleasure during the act of sex. In a prior pilot study, many men reported more orgasms with some even experiencing multiple orgasms. Group 1 took green oats for 28 days and group 2 took a placebo for 28 days. They then switched groups with no one knowing who was taking the placebo or who was taking the green oats.
- The authors of a 2011 study noted that avena sativa is an aphrodisiac. Malviya N et al. Recent studies on aphrodisiac herbs for the management of male sexual dysfunction—a review. Acta Polonaie Pharmaceutica2011 Jan-Feb; 68(1): 3-8
L-arginine is an essential amino acid that is converted into nitric oxide once it is ingested. Higher production of nitric oxide improves blood flow which in turn provides a variety of health benefits. Two areas in which L-arginine is especially beneficial are heart health and sexual health. L-arginine also is essential for helping the body eliminate waste and in making creatine, a protein that plays an important role in maintaining strength and boosting energy.
- Several studies have shown that L-arginine can be helpful in people with lesser heart health. Bednarz B et al. Efficacy and safety of oral l-arginine in acute myocardial infarction. Results of the multicenter, randomized, double-blind, placebo-controlled ARAMI pilot trial. Kardiol Pol 2005; 62:421-27; Chauhan A et al. Aging-associated endothelial dysfunction in humans is reversed by L-arginine. Journal of the American College of Cardiology 1996; 28:1796-804; Schulman SP et al. L-arginine therapy in acute myocardial infarction. The vascular interaction with age in myocardial infarction (VINTAGE MI) randomized clinical trial. JAMA 2006; 295:58-64
- In a double-blind, crossover, placebo-controlled clinical trial, arginine plus adenosine monophosphate was found to be helpful and well tolerated in treating mild to moderate sexual health concerns. Neuzillet Y et al. A randomized, double-blind, crossover, placebo-controlled comparative clinical trial of arginine aspartate plus adenosine monophosphate. Andrology 2013 Mar; 1(2): 223-38
- L-arginine can help protect exercise performance and the integrity of the muscles. Lomonosova YN et al. L-arginine supplementation protects exercise performance and structural integrity of muscle fibers after a single bout of eccentric exercise in rats. PLoS One 2014 Apr 15; 9(4): e94448
Resveratrol is a phytonutrient and antioxidant found in red grapes, onions, and several other foods. On this phytonutrient’s list of benefits are promotion of heart health and promoting optimal testosterone levels, as well as promoting better prostate health.
- Levels of testosterone were enhanced by 50 percent in a mouse study using resveratrol. Shin S et al. Trans-resveratrol relaxes the corpus cavernosum ex vivo and enhances testosterone levels and sperm quality in vivo. Archives of Pharmacal Research 2008 Jan; 31(1): 83-87
- A recent (2014) study in Clinical Nutrition found that resveratrol helped reduce systolic blood pressure when taken at high doses. Liu Y et al. Effect of resveratrol on blood pressure: a meta-analysis of randomized controlled trials. Clinical Nutrition 2014 Mar 31
- A number of studies have shown that resveratrol possesses properties that may help prostate health. Singh CK et al. Resveratrol-zinc combination for prostate management. Cell Cycle 2014 Jun 15; 13(12): 1867-74
The high concentration of zinc found in the prostate gland suggests this mineral plays a significant role not only in prostate health but men’s health overall. In fact, numerous studies of zinc have shown it to have an impact on everything from brain function to heart health, energy production, and various factors related to sexual health and athletic performance. Even a mild deficiency of zinc can reduce sex drive, contribute to weight gain, and lower energy levels.
One of the basic functions of zinc is to fuel the thyroid gland, which requires the mineral to produce thyroid hormone necessary to maintain energy and metabolism. More specifically, zinc is “essential for the catalytic activity of many enzymes involved in energy nutrient metabolism.” Research in animals has shown that a diet deficient in zinc results in lower energy levels and reduced food intake. Evans SA et al. Regulation of metabolic rate and substrate utilization by zinc deficiency. Metabolism 2004 Jun; 53(6): 727-32
- In a study published in Nutrition, researchers found that even a marginal zinc deficiency can have a negative impact on testosterone levels. In a study of 40 normal men aged 20 to 80 years, investigators found that restricting dietary zinc in young men resulted in a significant decrease in testosterone concentration after 20 weeks and that zinc supplementation in marginally zinc deficient elderly men resulted in an increase in testosterone. Prasad AS et al. Zinc status and serum testosterone levels of healthy adults. Nutrition 1996 May; 12(5): 344-48
- A review from a team of Australian experts reported that zinc protects against coronary artery disease and cardiomyopathy, and that the mineral plays an essential role in preventing myocardial damage. They also noted that supplementing with zinc has demonstrated an ability to improve cardiac function and prevent additional damage to the heart. Little PJ et al. Zinc and cardiovascular disease. Nutrition 2010 Nov-Dec; 26(11-12): 1050-57
- A collaborative effort between researchers at Duke University Medical Center and chemists at the Massachusetts Institute of Technology resulted in scientists showing how zinc regulates communication between the hippocampus and neurons to improve memory and the ability to learn. Sufficient intake of zinc is important for optimal brain function and may be essential in preventing cognitive decline associated with aging. Pan E et al. Vesicular zinc promotes presynaptic and inhibits postsynaptic long-term potentiation of mossy fiber-CA3 synapse. Neuron 2011 Sep 22; 71(6): 1116-26
Ginkgo biloba contains more than 40 substances, and two groups in particular are associated with health benefits: flavonoids and terpenoids. The former help the blood vessels and heart health while the latter can enhance blood flow. Ginkgo biloba appears to support L-arginine in its transformation to nitric oxide and also have a positive impact on brain function and prostate health.
- Research shows that ginkgo biloba can help improve mental functioning and memory. For example, individuals with mild cognitive impairment who took ginkgo biloba for one year demonstrated improvement in understanding, recognition, and recitation tests when compared with controls. Yu ZH et al. Ginkgo leaves tablet improved the memory quotient of patients with mild cognitive impairment: a clinical observation. Zhongguo Zhong Xi Yi Jie He Za Zhi 2014 Mar; 34(3): 287-91
- Ginkgo biloba can be effective in the treatment of erectile dysfunction, based on the findings of numerous studies. Cohen AJ et al. Ginkgo biloba for antidepressant-induced sexual dysfunction. Journal of Sexual and Marital Therapy 1998; 24:139-43; McKay D. Nutrients and botanicals for erectile health: examining the evidence. Alternative Medicine Review 2004 Mar; 9(1): 4-16; Sohn M, Sikora R. Ginkgo biloba extract in the therapy of erectile dysfunction. Journal of Secondary Educational Therapy 1991; 17:53-61