Testosterone treatment is unequivocally needed in classical hypogonadism for reasons discussed in subsequent subsections. In classical hypogonadism, testosterone production is usually clearly below the lower limit of normal and patients are highly symptomatic; the various symptoms are easily related to the deficiencies in various bodily systems where testosterone action is important. Symptoms of testosterone deficiency are listed in Table 2. A few prominent causes of classical hypogonadism are listed in Table 3.
Late onset hypogonadism reflects a particular pathophysiology and it may not be appropriate to extrapolate results from studies concerning the effects of testosterone in treating hypogonadism of other etiology to aging males. For this reason, the age of men treated in clinical trials is certainly relevant. Other important factors include patient comorbidities and the preparation and route of testosterone replacement used in the study, which can affect the production of estrogen and dihydrotestosterone, testosterone’s active metabolites
Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256]
Sexual arousal - boosting testosterone can improve sexual arousal, even if you have normal testosterone levels. Higher levels of testosterone can make it easier for you to get aroused and can boost your sex drive generally. While this doesn’t affect the physical action of your erections, if you are not getting hard because you’re not aroused then boosting testosterone could help.

Dr. Anthony’s Notes: Here's a funny little effect – fenugreek can make you sweet and your urine smell sweet like Maple Syrup. Hell, this could be a good thing for you! This supplement is commonly used for good reasons – it's quite effective for enhancing libido when stacked with the other herbs on this list. Medical Note: Fenugreek may interact with blood thinning medications (Warfarin, Coumadin, Xarleto). Check with your doctor before taking any of these supplements. How To Take Fenugreek: Take 400-600mg (capsule) with food; it's best to take a product standardized for fenuside.
For example, the study published in Obesity Research tells that the scientists measured testosterone levels in two groups of middle-aged men with obesity. One group underwent a 16-week weight loss program, while the second group did nothing. Each participant of the first group lost 20 kg on the average. And these participants experienced a significant increase in testosterone levels. So, the fight against overweight is very important for those who want to overcome testosterone deficiency. But starvation is strictly forbidden because this is a stressful situation which leads to the sharp decline in T levels.
You’re probably most familiar with testosterone as being the sex hormone responsible for defining “manhood.” And, yes, it does. However, proper levels of this key hormone are also necessary to stimulate sexual desire, increase libido, heighten arousal and ensure sexual satisfaction for both men and women. It’s also necessary to maintaining the following:
Testosterone supplements are typically used by men who want to increase the level of the male hormone testosterone that controls functions such as sexual desire and muscle gain. There are several types of over-the-counter testosterone supplements available in nutritional supply stores. You should speak to your doctor before using any type of testosterone supplement since none of the effects advertised have been approved by the Food and Drug Administration. Additionally, there are prescription-based testosterone therapies that produce better results.
Studies conducted in rats have indicated that their degree of sexual arousal is sensitive to reductions in testosterone. When testosterone-deprived rats were given medium levels of testosterone, their sexual behaviors (copulation, partner preference, etc.) resumed, but not when given low amounts of the same hormone. Therefore, these mammals may provide a model for studying clinical populations among humans suffering from sexual arousal deficits such as hypoactive sexual desire disorder.[37]

Testosterone is the primary sex hormone in men, and it is responsible for the development of many of the physical characteristics that are considered typically male. Women also produce the hormone in much smaller amounts. Testosterone, part of a hormone class known as androgens, is produced by the testicles after stimulation by the pituitary gland, which is located near the base of the brain, and it sends signals to a male's testicles (or to a woman's ovaries) that spark feelings of sexual desire. (1)
As blood levels of testosterone increase, this feeds back to suppress the production of gonadotrophin-releasing hormone from the hypothalamus which, in turn, suppresses production of luteinising hormone by the pituitary gland. Levels of testosterone begin to fall as a result, so negative feedback decreases and the hypothalamus resumes secretion of gonadotrophin-releasing hormone. 

Testosterone is an androgenic sex hormone produced by the testicles (and in smaller amounts in women’s ovaries), and is often associated with “manhood.” Primarily, this hormone plays a great role in men’s sexual and reproductive function. It also contributes to their muscle mass, hair growth, maintaining bone density, red blood cell production, and emotional health.
Few examples: In this 2014 study, a bunch of researchers tested multiple different diets with added Lactobacillus Reuteri on male rodents. In every single case, the addition of L.Reuterii to the feed increased testosterone levels, increased luteinizing hormone levels, increased testicular size & weight, prevented age-related testicular shrinkage, improved semen parameters, and even increased markers of social domination.
Autopsy studies have found histological prostate cancer to be very common, with one series showing a prevalence of greater than fifty percent in men over age sixty (Holund 1980). The majority of histological cancers go undetected so that the clinical incidence of the disease is much lower, but it is still the most prevalent non-skin cancer in men (Jemal et al 2003). Prostate cancer is also unusual in comparison to other adult cancers in that the majority of those with the disease will die of other causes. Treatment of prostate cancer with androgen deprivation is known to be successful and is widely practiced, indicating an important role for testosterone in modifying the behavior of prostate cancer. In view of this, testosterone treatment is absolutely contraindicated in any case of known or suspected prostate cancer. The question of whether testosterone treatment could cause new cases of prostate cancer, or more likely cause progression of undiagnosed histological prostate cancer that would otherwise have remained occult, is an important consideration when treating ageing males with testosterone.
Now you know I prefer studies conducted on human participants instead of rodents, but often there is no choice.  A Japanese study on rats that you can read here: http://jn.nutrition.org/content/131/8/2150.short has demonstrated pretty convincingly that garlic supplementation significantly increases testosterone.  I wish there were more tests on humans but it turns out garlic isn’t patentable (sorry Monsanto) which means there isn’t enough financial interest to warrant human studies.  Maybe I’ll conduct one.  Any volunteers?
Male hypogonadism becomes more common with increasing age and is currently an under-treated condition. The diagnosis of hypogonadism in the aging male requires a combination of symptoms and low serum testosterone levels. The currently available testosterone preparations can produce consistent physiological testosterone levels and provide for patient preference.
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Androgens may modulate the physiology of vaginal tissue and contribute to female genital sexual arousal.[48] Women's level of testosterone is higher when measured pre-intercourse vs pre-cuddling, as well as post-intercourse vs post-cuddling.[49] There is a time lag effect when testosterone is administered, on genital arousal in women. In addition, a continuous increase in vaginal sexual arousal may result in higher genital sensations and sexual appetitive behaviors.[50]
Travison, T. G., Vesper, H. W., Orwoll, E, Wu, F., Kaufman, J. M., Wang, Y., …Bhasin, S. (2017, April1). Harmonized reference ranges for circulating testosterone levels in men of four cohort studies in the United States and Europe. The Journal of Clinical Endocrinology & Metabolism, 102(4), 1161–1173. Retrieved from https://academic.oup.com/jcem/article/102/4/1161/2884621
Take 250 mg of Forskolin, standardized to 10 percent, twice a day. Take one serving before training and the other with a meal. According to "Natural Anabolics," Forskolin decreased body fat and increased free testosterone levels in training individuals as compared to a placebo. Forskolin comes from the herb coleus forskohlii and is also known as Forslean.

Everyone knows that carbohydrates are extremely important for testosterone production, but instead of reaching for grains during your next meal, stack your plate high with potatoes. Research reveals that grains have inflammatory properties, but the testosterone-friendly starches in potatoes will have the bodybuilder in your life smiling at dinnertime!
Dr. Anthony's Notes: When evaluating the efficacy of a product, it’s tough to balance the currently available human research with thousands of years of anecdotal evidence of efficacy. Tongkat Ali is a perfect example. All of the current studies are on animal models (not humans) – this DOES NOT mean that Tongkat Ali doesn’t work with humans. It simply means more research is needed. Personally, the strong experience of thousands of men (myself included) using this herb can confirm it’s libido enhancing effects. Also, this herb is DAMN BITTER. It makes Maca powder seem like a walk in the park. Hide in a smoothie or you will be sorry haha! How To Take Tongkat Ali: 200-300mg (of a 100:1 extract) 1-2 times per day. If you are using the raw powder (recommended below) that is NOT encapsulated, definitely hide the powder in a fat burning smoothie like the “Fit Father Fat Burning Shake Recipe” we recommend in FF30X. Again, I cannot understand how damn nasty this powder tastes. Beware!
Vitamin D3. Vitamin D3 actually isn’t a vitamin, it’s a hormone — a really important hormone that provides a whole host of health benefits. Our bodies can naturally make vitamin D from the sun, but recent studies have shown that many Westerners are vitamin D3 deprived because we’re spending less and less time outdoors. When we do decide to venture outside, we slather our bodies with sunscreen, which prevents the sun reaching our skin to kick-off vitamin D3 production. If you’re not getting enough sun, you may have a vitamin D3 deficiency, which may contribute to low T levels. If you think you need more vitamin D3, supplement it with a pill. Studies have shown that men who take this supplement see a boost in their testosterone levels. Because I have a darker complexion — which makes me prone to Vitamin D3 deficiency — I took 4,000 IU of vitamin D3 in the morning.
The regular intake of testosterone boosters is known for the high level of safety comparing to the hormone injections and the use of illegal steroids. But still to protect yourself against any possible adverse reactions, you should remember that the supplementation can’t be continuous. The breaks from time to time are required. Such an approach to the use of boosters is healthy and best-working if you aspire to enhance own hormone production without any harm.
The bones and the brain are two important tissues in humans where the primary effect of testosterone is by way of aromatization to estradiol. In the bones, estradiol accelerates ossification of cartilage into bone, leading to closure of the epiphyses and conclusion of growth. In the central nervous system, testosterone is aromatized to estradiol. Estradiol rather than testosterone serves as the most important feedback signal to the hypothalamus (especially affecting LH secretion).[115] In many mammals, prenatal or perinatal "masculinization" of the sexually dimorphic areas of the brain by estradiol derived from testosterone programs later male sexual behavior.[116]

With the exception of increasing my fat and cholesterol intake, my diet wasn’t that unconventional. I didn’t follow a strictly low-carb or Paleo diet because recent research has suggested that a diet high in protein and low in carbs actually causes T levels to decrease. With that said, I was judicious with the carbs. I tried to get most of my carbs from veggies and fruit, but I didn’t freak out if my wife made us spaghetti for dinner.

Testosterone may prove to be an effective treatment in female sexual arousal disorders,[52] and is available as a dermal patch. There is no FDA approved androgen preparation for the treatment of androgen insufficiency; however, it has been used off-label to treat low libido and sexual dysfunction in older women. Testosterone may be a treatment for postmenopausal women as long as they are effectively estrogenized.[52]
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Beast Sports recommends taking four capsules twice per day. The pills are about the same size as a multivitamin or a Tylenol liquid gel pill — not tiny tablets, unfortunately, but they aren’t horse pills. They smell like the boxes of raisins your Mom packed into your school lunch, but stale, like they were forgotten in the pantry for a few years, and a little spicy, like she sprinkled curry powder on them. If you follow this eight pills per day regime, your $46 bottle will last you twenty-two days, and cost you about $2 per day.
Since then there have been many publications documenting suppressed testosterone and gonadotropins (Daniell 2006) in men using opioid medications whether these agents were administrated orally (Daniell 2002) or intrathecally (Finch et al 2000). Not only do opioids act centrally by suppressing GnRH, they also act directly on the testes inhibiting the release of testosterone by Leydig cells during stimulation with human chorionic gonadotropin (Purohit et al 1978). Although the large majority of men (and women) receiving opioids do develop hypogonadism, about 15 percent also develop central hypocorticism and 15 percent develop growth hormone deficiency (Abs et al 2000).
Cross-sectional studies conducted at the time of diagnosis of BPH have failed to show consistent differences in testosterone levels between patients and controls. A prospective study also failed to demonstrate a correlation between testosterone and the development of BPH (Gann et al 1995). Clinical trials have shown that testosterone treatment of hypogonadal men does cause growth of the prostate, but only to the size seen in normal men, and also causes a small increase in prostate specific antigen (PSA) within the normal range (Rhoden and Morgentaler 2005). Despite growth of the prostate a number of studies have failed to detect any adverse effects on symptoms of urinary obstruction or physiological measurements such as flow rates and residual volumes (Snyder et al 1999; Kenny et al 2000, 2001). Despite the lack of evidence linking symptoms of BPH to testosterone treatment, it remains important to monitor for any new or deteriorating problems when commencing patients on testosterone treatment, as the small growth of prostate tissue may adversely affect a certain subset of individuals.

Most Americans today are sleep deprived, which may be a contributing factor to declining testosterone levels in men. See, our body makes nearly all the testosterone it needs for the day while we’re sleeping. That increased level of T that we experience at night is one of the reasons we wake up with “Morning Wood.” (If you don’t have Morning Wood on a consistent basis, you might have low T).

In males, testosterone is synthesized primarily in Leydig cells. The number of Leydig cells in turn is regulated by luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In addition, the amount of testosterone produced by existing Leydig cells is under the control of LH, which regulates the expression of 17β-hydroxysteroid dehydrogenase.[128]


Are you getting enough vitamin D? Vitamin D is an essential nutrient, but it can be difficult for people to know if they are getting the right amount. Some people will be able to get enough vitamin D from sunlight. Others may need to make dietary changes or take supplements. Here, we explain how to get vitamin D from sunlight, food, and supplements. Read now
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To get your levels into the healthy range, sun exposure is the BEST way to optimize your vitamin D levels; exposing a large amount of your skin until it turns the lightest shade of pink, as near to solar noon as possible, is typically necessary to achieve adequate vitamin D production. If sun exposure is not an option, a safe tanning bed (with electronic ballasts rather than magnetic ballasts, to avoid unnecessary exposure to EMF fields) can be used.
"A lot of the symptoms are mirrored by other medical problems," Hedges says. "And for a long time, we were not attributing them to low testosterone, but to diabetes, depression, high blood pressure, and coronary artery disease. But awareness and appreciation of low testosterone has risen. We recognize now that low testosterone may be at the root of problems."
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