Both testosterone and 5α-DHT are metabolized mainly in the liver.[1][151] Approximately 50% of testosterone is metabolized via conjugation into testosterone glucuronide and to a lesser extent testosterone sulfate by glucuronosyltransferases and sulfotransferases, respectively.[1] An additional 40% of testosterone is metabolized in equal proportions into the 17-ketosteroids androsterone and etiocholanolone via the combined actions of 5α- and 5β-reductases, 3α-hydroxysteroid dehydrogenase, and 17β-HSD, in that order.[1][151][152] Androsterone and etiocholanolone are then glucuronidated and to a lesser extent sulfated similarly to testosterone.[1][151] The conjugates of testosterone and its hepatic metabolites are released from the liver into circulation and excreted in the urine and bile.[1][151][152] Only a small fraction (2%) of testosterone is excreted unchanged in the urine.[151]
Topical testosterone, specifically gels, creams and liquids, may transfer to others. Women and children are most at risk of harmful effects from contact with them. You should take care to cover the area and wash your hands well after putting on the medication. Be careful not to let the site with the topical TT touch others because that could transfer the drug.
The ingredients in testosterone supplements may be different. Some testosterone supplements contain zinc and magnesium. They increase testosterone levels in men who exercise. Some other testosterone supplements have hormones like DHEA (dehydroepiandrosterone) and pregnenolone. They help with making new testosterone and may help improve the ability to have an erection. But it doesn't seem to be helpful if the problem with erections is caused by diabetes or nerve disorders. Some testosterone booster supplements contain natural ingredients like herbs and botanicals. They may increase testosterone by increasing a hormone produced by the brain, which signals the testicles to produce more testosterone. In addition, others work by releasing bound testosterone, so it is in a form the body can use. Studies do not provide strong evidence that women benefit from taking these supplements. You need to talk to your doctor or pharmacist before starting a testosterone booster supplement. Discuss your medical history and current prescribed medications, over the counter medications, and any supplements that you are taking. Your doctor or pharmacist can tell you if a testosterone booster supplement is right for you. Once you know if a testosterone booster supplement is right for you, Walgreens has a variety of testosterone booster supplements to choose from and they come in different forms like tablets, capsules or gels.
Millions of American men use a prescription testosterone gel or injection to restore normal levels of the manly hormone. The ongoing pharmaceutical marketing blitz promises that treating "low T" this way can make men feel more alert, energetic, mentally sharp, and sexually functional. However, legitimate safety concerns linger. For example, some older men on testosterone could face higher cardiac risks.

In addition to weightlifting, studies have shown that HIIT workouts can also help boost testosterone levels. For those of you who don’t know, HIIT stands for high-intensity interval training. It calls for short, intense bursts of exercise, followed by a less-intense recovery period. You repeat with the intense/less-intense cycle several times throughout the workout. In addition to increasing T, HIIT has been shown to improve athletic conditioning and fat metabolism, as well as increase muscle strength.
Before assessing the evidence of testosterone’s action in the aging male it is important to note certain methodological considerations which are common to the interpretation of any clinical trial of testosterone replacement. Many interventional trials of the effects of testosterone on human health and disease have been conducted. There is considerable heterogenicity in terms of study design and these differences have a potential to significantly affect the results seen in various studies. Gonadal status at baseline and the testosterone level produced by testosterone treatment in the study are of particular importance because the effects of altering testosterone from subphysiological to physiological levels may be different from those of altering physiological levels to supraphysiological. Another important factor is the length of treatment. Randomised controlled trials of testosterone have ranged from one to thirty-six months in duration (Isidori et al 2005) although some uncontrolled studies have lasted up to 42 months. Many effects of testosterone are thought to fully develop in the first few months of treatment but effects on bone, for example, have been shown to continue over two years or more (Snyder et al 2000; Wang, Cunningham et al 2004).
Thanks for all the time and energy you put into this . Very informative . Great read. As far as intermittent fasting ,it’s the best. Check out Kinobody on YouTube for great info. I just stopped T injections and was looking for a good Tongkat Ali . Is Herbolab better than SD200 from Pure Science Supplements . I know there is a lot of garbage out there,just want the best quality . Thanks again .
There is a polymorphic CAG repeat sequence in the androgen receptor gene, which codes for a variable number of glutamine amino acids in the part of the receptor affecting gene transcription. A receptor with a short CAG sequence produces greater activity when androgens attach, and men with shorter CAG polymorphisms exhibit androgenic traits, such as preserved bone density (Zitzmann et al 2001) and prostate growth during testosterone treatment (Zitzmann et al 2003). Indirect evidence of the importance of androgens in the development of prostate cancer is provided by case control study findings of a shorter, more active CAG repeat sequence in the androgen receptor gene of patients with prostate cancer compared with controls (Hsing et al 2000, 2002).
Testosterone insufficiency has been associated with HIV infection in men (Dobs et al 1988). Early reports suggested that testosterone therapy may have an ameliorating effect on both depression and decreased energy in HIV infected men, even if testosterone levels were not reduced (Rabkin et al 1999; Grinspoon et al 2000; Rabkin et al 2000). Both depression and fatigue, however, are common features of HIV-positive men and may be associated with factors other than reduced levels of testosterone. The disease itself may induce depression and fatigue may be a consequence of the disease, per se, or of some of the medications used to control HIV.
Your first step should be to see your doctor. If you think you have low testosterone, we cannot stress enough that you should proceed with caution and talk to a medical professional — taking a booster can definitely do more harm than good. Low testosterone can be a symptom of more serious problems, like a pituitary disorder or a side-effect of medication, and a booster can mask the root cause. A doctor will be able to evaluate your testosterone levels with a simple blood test, and if you both decide a booster is the way to go, give the ingredients of any supplement a once-over to make sure that they’re not at risk of making your personal health situation worse.
Bottom line: testosterone boosters aren’t right for a lot of people. We dive deep into ingredient research below, but typically, testosterone boosters contain at least one (and often three or more) different ingredients that each impact your circulatory system — both the heart and blood. If you’re taking any kind of blood-thinner medication, or you have a history of heart disease, these supplements can get really dangerous, really quickly. The simple fact of the matter is that hormones are tricky things to mess with, and a doctor should be your first port of call to help you safely achieve your goals — whether they’re related to fitness, weight, or libido.
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Anabolic–androgenic steroids (AASs) are synthetic derivatives of testosterone that are commonly used among athletes aged 18–40 years, but many reports have demonstrated the presence of numerous toxic and hormonal effects as a result of long-term use of an AAS.[9] Testosterone-foods act as natural libido boosters. Due to the growing interest in herbal ingredients and other dietary supplements worldwide, the use of testosterone boosters is becoming more and more mainstream among athletes, but several side effects were documented. Hence, this study established to help in the assessment of the side effects and health risks which could occur among athletes consuming testosterone boosters.
Japanese Knotweed (a.k.a Hu Zhang or Polygonum cuspidatum) is highlighted by WebMD as needing more evidence to rate its effectiveness in a number of different areas: like treating constipation and liver or heart disease. They also warn that it can interact poorly with medications that are changed and broken down by the liver, and those that slow blood clotting (anticoagulants and antiplatelets).
Ashwagandha is shown to be effective at reducing cortisol which in turn helps with testosterone production. There are also numerous studies showing the effects on improving testosterone in infertile men (ref 80).  If you are using the Aggressive Strength product you don't need to supplement with ashwagandha as it's included in the test booster formula. Likewise if you're using Tian Chi (my daily herb drink).
Testosterone is an important hormone for both men and women. Even though it’s often associated with a man’s libido, testosterone occurs in both sexes from birth. In females, it plays a part in sexual drive, energy, and physical strength. In males, it stimulates the beginning of sexual development and helps maintain a man’s health throughout his life.
But when a premenopausal woman’s testosterone levels are too high, it can lead to polycystic ovary syndrome (PCOS), a condition that increases the risk of irregular or absent menstrual cycles, infertility, excess hair growth, skin problems, and miscarriage. High levels of testosterone in women, whether caused by PCOS or by another condition, can cause serious health conditions such as insulin resistance, diabetes, high cholesterol, high blood pressure, and heart disease. (12)
A little goes a long way for men, but clinically many men do well with 5 to 10 mg of a topical progesterone cream at bedtime, again, only under your doctor’s supervision. Arginine is important for nitric oxide (NO) production and should be taken twice daily. I've also been recommending Testoplex™ for years. It's Xymogen’s formulation—featuring mungbean sprout powder—to address healthy testosterone levels and provide support for libido and overall vitality.
While I do have a pretty manly mustache, I’m not a doctor or a medical expert. I’m a guy with a law degree he’s never used who blogs about manliness. What I’m about to share shouldn’t be taken as a substitute for qualified medical expertise. It’s simply my experience and views on the subject. Before you make any changes in lifestyle or diet, talk to your doctor or healthcare provider. Be smart.
Mackerel is one of the favorite food fish that is consumed all around the globe. As the flesh of mackerel spoils quickly, it can cause food poisoning if not eaten on the same day of capture, unless it is properly refrigerated or treated. Mackerel is predominantly rich in omega-3 fatty acids. Mackerel provides testosterone-enhancing vitamin D and also contains zinc as well.
Another recent development is the production of adhesive tablets which are applied twice daily to the buccal mucosa on the gum above the incisor teeth. The tablets gradually release testosterone into the systemic venous circulation and steady state physiological concentrations are achieved in most patients within two days (Ross et al 2004). Some patients do not like the feeling of the tablet in the mouth or find that there is an abnormal taste in the mouth, but local adverse effects are usually mild and transient (Wang, Swerdloff et al 2004).
The biggest change I made to my diet was increasing my fat and cholesterol intake. There’s a reason why old school strong men would drink raw eggs — studies have suggested that higher fat and cholesterol consumption results in increased levels of total T; men eating low-fat diets typically have decreased testosterone levels. The emphasis on increasing fat and cholesterol consumption meant I got to eat like Ron Swanson for three months — bacon and eggs and steak was pretty much the staple of my diet.
There are many ways to naturally boost testosterone without steroid use. In fact, taking steroid hormones such as testosterone and its chemical analogs actually shuts down the body's natural production of this important muscle-building hormone. The way you train and eat can drastically affect the amount of testosterone your body produces. In addition, there are a few natural supplements that may also boost testosterone.
Testing is the only way you can validate a low-T diagnosis and measure treatment progress. I always say, "Test, don’t guess!" Your doctor may "suspect" you have hormone imbalances by your symptoms, but you should ask that they do testing to confirm unhealthy levels. Testing also ensures your doctor rules out other issues that may simply have similar symptoms. With your test results in hand, your physician can best determine what the optimal levels are for you and determine the best course of treatment.
Testosterone Max is another product that we chose to rank amongst the elite because of its ability to cause the body to produce testosterone on its own in a completely natural way. Almost all of the requirements are once again met, in terms of high quality ingredients, synergy, sufficient amounts, clinical proof (for the most part), and the absence of a proprietary blend.
Now that we know chronic insulin spikes lead to lower Testosterone production, I hope I haven’t sent you running into the low carb camp! There are a few studies out there showing that long term low carb or ketogenic dieting leads to higher cortisol levels (especially with subjects who are training), and decreased testosterone levels (28 & 29). I have used low carb diets in the past with successful results (winning a national bodybuilding title), however the key is to use cyclical carb re-feeds. If you’re going to go on a low carb diet for whatever reason, be sure to work in a large carb reefed once a week.

Rumor has it that the Kim sisters' testosterone pill received a reaction that no other product has ever gotten on Shark Tank. Apparently, after watching a presentation from the pair and hearing about how well their product has performed so far, all five judges got into a heated argument over who would make a deal with the two young entrepreneurs. It's been said that the fight lasted nearly an hour before the judges decided to do something that's never been done before. All five Sharks teamed up to invest an unbelievable $2.5 million into the Kim sisters' product!
6)  Take Cold Showers:  Cold showers have been known to stimulate and boost testosterone production and improve metabolism, detoxification and brain function.  Start your shower with warm/hot water and turn it to cold for the last 30-60 seconds while pumping your muscles and creating a big shiver as your muscles contract.  That will help to boost internal heat and boost testosterone production.  This article will help you.
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.
“This study establishes testosterone levels at which various physiological functions start to become impaired, which may help provide a rationale for determining which men should be treated with testosterone supplements,” Finkelstein says. “But the biggest surprise was that some of the symptoms routinely attributed to testosterone deficiency are actually partially or almost exclusively caused by the decline in estrogens that is an inseparable result of lower testosterone levels.”
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