Testosterone is observed in most vertebrates. Testosterone and the classical nuclear androgen receptor first appeared in gnathostomes (jawed vertebrates).[193] Agnathans (jawless vertebrates) such as lampreys do not produce testosterone but instead use androstenedione as a male sex hormone.[194] Fish make a slightly different form called 11-ketotestosterone.[195] Its counterpart in insects is ecdysone.[196] The presence of these ubiquitous steroids in a wide range of animals suggest that sex hormones have an ancient evolutionary history.[197]
Today we take a look at some of the physical and psychological benefits that come with having optimal testosterone levels (I’ll talk about what “optimal” means regarding T later this week). You probably know about some of the benefits already, but some of the ones I discuss may surprise you. When appropriate, I’ll report any health benefits that I experienced during my own 90-day testosterone boosting experiment.
However, studies have found that social success among men is actually linked with high testosterone levels. For example, teenage boys who were perceived as socially adept and dominant had higher levels of testosterone than boys that were low on the totem pole. What’s even more interesting is that this same study found that teenage boys who had a history of being anti-social and displaying high physical aggression were found to have lower testosterone levels at age 13 compared with boys with no history of high physical aggression.
Fenugreek is an enigma, deep-fried in a mystery, and wrapped in secrecy. It can actually LOWER your testosterone levels while simultaneously increasing your libido and athletic performance, 2 effects that correlate with elevated testosterone levels.  Strange.  This is the first supplement I have come across that might have the opposite of the desired effect, and yet be worth taking anyway.
Take 1 teaspoon. Incredibly dense in nutrients and feed by bees to the larvae who grows on to be the queen bee. I found one human study where a 4g daily serving led to an small increase in testosterone in older men (ref 78). There are also numerous animal studies (ref 79) showing positive effects. Personally I source NZ manuka royal jelly from Manuka Health.

Maybe someone could help me out here. I am a 21 year old former college football player and have been experiencing low test for a while now, about a year ago i went in to see my doctor, and after becoming an expert over the subject thanks to the internet, i told him that i thought it had to be my testosterone level. So he had me come back the next day and got a level of 107ng/dL. He was shocked to say the least. He referred me to an IDIOT endocrinologist, and he which tested me again and got a level of 187. He said to do nothing for the next 3 MONTHS and levels should be 700-900… Yeah well about 4 months later, which was last week, i had to go in, there is some serious shit wrong with me, physically, mentally, you name it. The level came back at 57ng/dL… They said we need to run further tests… WTF is going on, i am dying here. What do i do people???


It’s worth emphasizing that these supplements are totally legit. They’re NOT steroids. Meaning, only the natural and harmless ingredients have been used to make these products, which can help the guys dealing with the low testosterone problems, such as low energy, fatigue, muscle loss, irritability, and similar. Usually, the guys tend to start experience these problems in their late 20s and in some cases in their early 30s.
The TTrials were funded by the National Institutes of Health, and consist of 7 integrated, placebo-controlled, randomized clinical trials evaluating the short-term efficacy of testosterone treatment in older men with low circulating levels of the hormone. The benefits of testosterone were evaluated in 7 clinically relevant medical concerns and at least preliminary evidence of efficacy in sexual function, physical function, vitality, cognition, anemia, bone health, and cardiovascular health.
Boron, a mineral, keeps the cell walls of plants strong. Eating dried fruits and nuts gives you abundant amounts of boron. You can also take boron supplements. It's important to keep your daily boron intake at less than 20 mg, however, according to a current factsheet available from the U.S. National Library of Medicine. High doses of boron can cause serious side effects such as skin inflammation and peeling, irritability, tremors or depression.
Ashwagandha is sometimes included in testosterone supplements because of the hypothesis that it improves fertility. However, we couldn’t find sufficient evidence to support this claim (at best, one study found that ashwagandha might improve cardiorespiratory endurance). WebMD advocates caution when taking this herb, as it may interact with immunosuppressants, sedative medications, and thyroid hormone medications.

61y/o with 18month progressive lethargy, depressed mood, no sex drive, no erections. Doc put me on cymbalta (slept even more than 14hrs daily) then on Wellbutrin. All the time I was pushing for T testing. Came back low in March of this year and put on IM cypionate 100mg q3 weeks. Even I knew that was too low and infrequent. Nonetheless, that how it’s been since April. Finally got urology consult in Shreveport and got a level done at that time. Was 127 just two weeks after last injection. He is going to bump me up to 300mg q2 weeks and do a level 2 days after first injection and 1 day before next shot. Since I’m getting care thru VA, it’s a waiting game. Saw urologist last week. Prob won’t see testostosterone in mail for another week or two. I’m excited to feel like living again, not sleeping all the time, and perhaps some nooky now and then . Appreciated this article arm subsequent posts and personal trials. Would love to find a competent and assertive urologist in my area of Louisiana. I’m around Monroe….so if you know one, let me know!

I started testosterone therapy on August 25th 2005. I remember this so well because my life pretty much changed after that. I think I’ve had low testosterone my entire life, though I’ve always had a healthy sex drive I was always tired and always sensed something was wrong although I sought out treatment at the doctor’s but just could never quite pinpoint what the problem was. long story short, I’ve had nothing but good things from testosterone therapy. mostly just more vitality and a better outlook on life
I am 41 and took test for my depression/ansiety, fatigue and ED problem due to the stress I am exposed to in my work.. Now I stopped and I accumulate a lot of fat, ansiety came back and I started to drink alcohol to cool things down, but as U know, its not helping. My question is.. Do you have to stop taking testosterone eventually or can you keep taking it as a supplement in a regular basis along the rest of your live? Cheers from Panama, Central America.

Every ingredient can be harmful when taken in significant quantities (we go more into that below), so we pored over each booster’s ingredient list to make sure that they weren’t serving up an overdose. In particular, we took a close look at magnesium and zinc, which have enough scientific background behind them to offer hard upper limits on how much you can safely consume.
Some anti-aging physicians also use sublingual ( taken under the tongue) forms of non-bioidentical testosterone like oxandrolone. I took oxandrolone with a physician’s guidance for about two weeks, and I got pimples and hair loss. I quit and was bummed that it didn’t generate enough impact to write a blog post about it. I have continued to recommend bioidentical testosterone since.
during therapy. It is very hard to find a local endo who is thinking with his head vs complying with old trt programs. I tool clomid in the past to see what it would do and it elevated my t level to 520 in 2 weeks from low 220. Aromason will do same but clomid is more potent. Not sure what the long effect would be since you tend to get bit moody on clomid after 2 months. LH is also being affected in negative way since the lh receptors can burn out to a degree. I will contact the trt clinic in order to start my trt as they have much more experience with these things.
You can browse Drugs A-Z for a specific prescription or over-the-counter drug or look up drugs based on your specific condition. This information is for educational purposes only, and not meant to provide medical advice, treatment, or diagnosis. Remember to always consult your physician or health care provider before starting, stopping, or altering a treatment or health care regimen.
Zinc is an essential mineral that plays an important role in improving testosterone levels as well as sperm production. Oysters are rich sources of this mineral. An increase in testosterone levels also helps improve your sexual desire and energy, which means that you are going to derive more pleasure from your sexual encounters besides having higher chances of conceiving.
I’ll be 31 this year and my belly is getting out of hand. I’ve cut way way back on my soda intake to maybe one or two a day most days and I’m drinking way more water than ever. Seems this belly is here to stay lol. I’m working on a better diet and I’m also gonna start back working out. This belly is a serious drag I hate it and I need it gone asap. What’s gonna be my best option in a test booster. I don’t want t to get all crazy buying fat burning pills and other foolery but I thing a test booster will help me all around. I’m high anxiety low energy poor sleeping over eating father of 4 and im currently in barber school. I need to make changes for my family and myself as well as my profession. Please help. (Belly is my only problem area I’m 30yrs olf 6ft 180lbs)
In essence, there are two types of testosterone boosters, namely natural and synthetic supplements. Anabolic steroids which are under the synthetic category are known to deliver positive results as well as nasty side effects. It is due to this reason that an increasing number of bodybuilders and athletes are now utilizing safer testosterone boosters.
We start with plastic. A lot of plastic contains bisphenol A (BPA); BPA is a weak synthetic estrogen. Like many other chemicals used in making plastics, BPA is a hormone disruptor and can block or mimic hormones and how they act in the body (34). If you think you’re safe with BPA plastic, think again. Research shows that BPA free plastic has similar estrogen-like effects on the body.
I am 35 and had the non sexual symptoms for awhile now( weight gain/muscle loss, extreme fatigue, lack of clarity/concentration) I got my testosterone levels checked last week and it was 35.4 ng. Not a typo, 35.4. I was told by my dr. That I needed to start TRT right away as low t can effect a lot different things in your body. I did my first injection last night (200mg/ml every 2 weeks) about 8 pm and td now 3:30 am and I’m wide awake and feel extremely motivated to go to the gym and work out. I know each person is different but should I feel like this already, or is it a placebo effect at this point?
Testosterone increases dominance and the desire for power. The link between testosterone and dominance has been demonstrated in numerous studies. T motivates men to gain and maintain social status. The desire for dominance can be a bad thing if it leads to criminal behavior, but it’s also what fuels the climb for success, motivates men to resist oppression and buck authority, and may even help you with the ladies…

Around age 30, men’s testosterone levels begin a long, gradual decline. (According to the FDA, normal T range is between 300 to 1,000 nanograms per deciliter (ng/dl) of blood serum. Anything below 300 ng/dl is considered low.) If a blood test confirms you have low T, your doctor may recommend a prescription testosterone supplement or replacement therapy.
My favorite overall tool to manage stress is EFT (Emotional Freedom Technique), which is like acupuncture without the needles. It's a handy, free tool for unloading emotional baggage quickly and painlessly, and so easy that even children can learn it. Other common stress-reduction tools with a high success rate include prayer, meditation, laughter and yoga, for example. Learning relaxation skills, such as deep breathing and positive visualization, which is the "language" of the subconscious.
When patients ask about risks, I remind them that they already have testosterone in their system and that the goal of testosterone treatment is to restore its concentration back to what it was 10 or 15 years previously. And the molecule itself that we give is identical to the one that their bodies make naturally, so in theory, everything should be hunky-dory. But in practice, there are always some curveballs.
One preliminary study by researchers from Tikrit University showed high statistically significant increase of serum hormones (p< 0.01) in infertile men [9]. After 30 week treatment serum testosterone has increased by 17,7%, serum luteinizing hormone by 43,2% and serum follicle-stimulating hormone by 17,6%; dosage of ginger used was not disclosed [9]. It is suggested that improved testosterone production is because ginger was shown to be effective in decreasing SDF (sperm DNA Fragmentation) in infertile men [22]. SDF is negatively correlated with testosterone levels [23].
If you are not making muscular gains by using your old BCAA supplement, our Advanced BCAA is the product to use to solve this problem.  Advanced BCAA’s are superior to free form BCAA’s because it is  more absorbable. Advanced BCAA is in peptide form and from predigested whey protein.  This makes it much more effective and beneficial to gaining muscle.  So if you have given up or don’t think BCAA’s work, try our Advanced BCAA powder and you wont be disappointed.
If you are not making muscular gains by using your old BCAA supplement, our Advanced BCAA is the product to use to solve this problem.  Advanced BCAA’s are superior to free form BCAA’s because it is  more absorbable. Advanced BCAA is in peptide form and from predigested whey protein.  This makes it much more effective and beneficial to gaining muscle.  So if you have given up or don’t think BCAA’s work, try our Advanced BCAA powder and you wont be disappointed.
The aim of treatment for hypogonadism is to normalize serum testosterone levels and abolish symptoms or pathological states that are due to low testosterone levels. The exact target testosterone level is a matter of debate, but current recommendations advocate levels in the mid-lower normal adult range (Nieschlag et al 2005). Truly physiological testosterone replacement would require replication of the diurnal rhythm of serum testosterone levels, but there is no current evidence that this is beneficial (Nieschlag et al 2005).
Another point I’d like to make for people worried about a link between high testosterone and prostate cancer is that it just doesn’t make sense. Prostate cancer becomes more prevalent in men as they age, and that’s also when their testosterone levels decline. We almost never see it in men in their peak testosterone years, in their 20s for instance. We know from autopsy studies that 8% of men in their 20s already have tiny prostate cancers, so if testosterone really made prostate cancer grow so rapidly — we used to talk about it like it was pouring gasoline on a fire — we should see some appreciable rate of prostate cancer in men in their 20s. We don’t. So, I’m no longer worried that giving testosterone to men will make their hidden cancer grow, because I’m convinced that it doesn’t happen.
Using steroids eventually trains your body to realize that it doesn’t have to produce as much testosterone to reach its equilibrium, so to reach the same highs you’ll need to take more steroids, and when you stop taking them, your body will need to readjust — you’ll be living with low testosterone for a while (and you’ll need to see a doctor if your body doesn’t readjust on its own). Forcing your body to stay above your natural testosterone, even if you’re naturally low, can create this kind of dependency which ultimately decreases the amount of testosterone your body will produce on its own.

A sedentary lifestyle is another scourge for modern civilization. And this is a serious danger for men. After all, if physical activity is minimal, the testosterone levels will decrease steadily. And in this situation, strength training exercises are a proven method for raising testosterone. Thus, sports exercises always helped raise the levels of male sex hormone. As a result, the testosterone levels elevate after every workout.
Trials of testosterone treatment in men with type 2 diabetes have also taken place. A recent randomized controlled crossover trial assessed the effects of intramuscular testosterone replacement to achieve levels within the physiological range, compared with placebo injections in 24 men with diabetes, hypogonadism and a mean age of 64 years (Kapoor et al 2006). Ten of these men were insulin treated. Testosterone treatment led to a significant reduction in glycated hemoglobin (HbA1C) and fasting glucose compared to placebo. Testosterone also produced a significant reduction in insulin resistance, measured by the homeostatic model assessment (HOMA), in the fourteen non-insulin treated patients. It is not possible to measure insulin resistance in patients treated with insulin but five out of ten of these patients had a reduction of insulin dose during the study. Other significant changes during testosterone treatment in this trial were reduced total cholesterol, waist circumference and waist-hip ratio. Similarly, a placebo-controlled but non-blinded trial in 24 men with visceral obesity, diabetes, hypogonadism and mean age 57 years found that three months of oral testosterone treatment led to significant reductions in HbA1C, fasting glucose, post-prandial glucose, weight, fat mass and waist-hip ratio (Boyanov et al 2003). In contrast, an uncontrolled study of 150 mg intramuscular testosterone given to 10 patients, average age 64 years, with diabetes and hypogonadism found no significant change in diabetes control, fasting glucose or insulin levels (Corrales et al 2004). Another uncontrolled study showed no beneficial effect of testosterone treatment on insulin resistance, measured by HOMA and ‘minimal model’ of area under acute insulin response curves, in 11 patients with type 2 diabetes aged between 33 and 73 years (Lee et al 2005). Body mass index was within the normal range in this population and there was no change in waist-hip ratio or weight during testosterone treatment. Baseline testosterone levels were in the low-normal range and patients received a relatively small dose of 100 mg intramuscular testosterone every three weeks. A good increase in testosterone levels during the trial is described but it is not stated at which time during the three week cycle the testosterone levels were tested, so the lack of response could reflect an insufficient overall testosterone dose in the trial period.
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.
In both men and women, imbalances in testosterone result in health issues like diabetes, obesity, metabolic syndrome, and osteoporosis. So testosterone is important for more than just men’s health issues; it crosses gender boundaries and affects all areas of the body. The Providers at New Leaf Wellness are aware of the risks and inconveniences that imbalanced hormone levels bring to the human body, and we are pleased to offer Natural Hormone Therapy to our clients.
According to studies by Srivastava [15] and Thomson et al. [21] ginger can be used as natural antithrombotic agent. Ginger has also been recorded as useful remedy in preventing post-operative nausea and vomiting in humans [13] as well as preventing morning sickness during pregnancy [16]. At high doses (500 mg/kg) aqueous extract of ginger exhibits cholesterol-lowering effect [21].
Meat. Meat, particularly beef, provides our bodies with the protein it needs to create muscle (more muscle = more T) and the fats and cholesterol to make testosterone. My meat topping of choice was sliced up chuck steak. I grilled two of them on Monday and it lasted me until the next Monday. Every now and then I’d slow-cook some ribs or brisket to use as my meat topping. My philosophy was the fattier, the better.
This is because your body is really good at self-regulating your hormone levels. So if you have normal testosterone levels, boosting above your natural base level may at best give you a few hours while your body makes, and then immediately processes out, the excess testosterone. This means you might experience higher than your average testosterone levels, but not by much, and only for a little while.

I was age 55 with T level at150 so the va doctor started me out on bi weekly 200mg injections.Needless to say it really made me fell young again. My depression seemed to get better my sex life returned had lots of energy lost weight ect.Well i moved to upstate NY and the new doctor said that she was going to discontinue my treatments due to it being addictive drugs?I was in a va 6month rehab treatment for alcohol and opiate addictions.I went down hill very fast with my depression and my ability to focus & concentrate in my daliy functions.I went allmost a yr. before my new doctor found my levels being low and started me back on the injections 200 mg biweekly at the hospital va clinic but due to my addictions wont send me the needles for home use as before.So they gave me andro gel 1 pump daily but after my last visit she doubled the dose to 2 pumps daily and i am starting to feel and look better!I work out 5 days a week very hard in the weight room and have gained some great results in strength and muscle mass.She is going to check my blood work again in 2 months to see if it needs to increase my dose again.Any ways thanks for the best information i have seen so far o this subject.Also the TRT has given me my life back and i am so glad that this was here to help me as i grow old!
Eggs often come up in reproductive health discussion. This time we’re talking about dietary eggs, as in omelets, and the role they play in boosting testosterone. The hormone boost from eggs comes primarily from the yolks, which are rich in dietary cholesterol, mono- and saturated fats—nutrients once demonized by health experts that have since proven to positively influence waistlines and hormone-health.
Currently available testosterone preparations in common use include intramuscular injections, subcutaneous pellets, buccal tablets, transdermal gels and patches (see Table 2). Oral testosterone is not widely used. Unmodified testosterone taken orally is largely subject to first-pass metabolism by the liver. Oral doses 100 fold greater than physiological testosterone production can be given to achieve adequate serum levels. Methyl testosterone esters have been associated with hepatotoxicity. There has been some use of testosterone undecanoate, which is an esterified derivative of testosterone that is absorbed via the lymphatic system and bypasses the liver. Unfortunately, it produces unpredictable testosterone levels and increases testosterone levels for only a short period after each oral dose (Schurmeyer et al 1983).
Vitamin D is arguably the most important vitamin when it comes to testosterone. A study published in the Journal of Clinical Endocrinology examined the relationship between vitamin D supplementation and testosterone levels in men. The authors found that participants with higher levels of vitamin D had significantly higher levels of free testosterone compared to those with insufficient levels of vitamin D.8 Based on these study results, it appears vitamin D has a strong relationship with testosterone levels.

There are several supplements on the market claiming to be natural testosterone boosters. I get these sorts of things in the mail all time. The companies that produce these products claim that the herbs (typically stinging nettle and tribulus) in their pills increase free testosterone by reducing SHBG. They also throw in some B vitamins for “increased energy and vitality.”


The problem with testosterone therapy is several reasons you may have to stop taking it.Despite what you hear the chance of enlarged prostate is very real.It happened to me.Also blood too thick only cure by phlebotomy(having blood drawn more often than you will probably want to be harpooned to thin blood.) I didn’t sleep well either(especially as trips to bathroom got more frequent from BPH)then you really need several labs getting estradiol and testosterone levels correct and hcg and arimidex in the mix also (or Clomid) but dht issues are very real and not addressed in most try protocol.finisteride has many bad side effects as does avodart. Testosterone therapy is great for some people but if you’re low normal like I was I wish I would have left well enough alone. Our bodies have a lot more hormones to balance than just testosterone and estradiol and the crash can be a little rough if you have to stop. Be smart and have Clomid,Adex,and hcg on hand just in case.Good luck to all on trt(and those stopping it)
So much to say, take a look at excelmale.com. it is a resource for men like us that give answers, science and dialogue which addresses our questions. It’s a great resource for men like us. Also, I would say to eliminate blue light before bed from tv and pc screens. Simply use blue light blocking glasses or F.lux from the play store. Also get outside in the sun in the AM. The goal is to restore the circadian rhythm which impacts hormone productiion.
“I'm 55 years old and hitting the ball further than I've ever hit, and I'm not getting tired going 18 holes! And when I play softball I'm hitting the ball further. I work for the DWP in LA and it's a very physically demanding job. Andro400 really helps because we work 16 hour days a lot. I was turning down a lot of overtime, but when I started taking Andro400, it got me through the day. I really notice a difference – even my wife did. It really works!”

• In a trial of men with anemia, 58% percent were no longer anemic after a year of therapy, compared to 22% who received a placebo. In addition, testosterone therapy was associated with higher hemoglobin levels. Hemoglobin is a protein in the blood that carries oxygen from the lungs to other areas of the body. It also brings carbon dioxide back to the lungs.


Lean beef, chicken, fish, and eggs are some of your options. Tofu, nuts, and seeds have protein, too. Try to get about 5 to 6 ounces per day, although the ideal amount for you depends on your age, sex, and how active you are. When you don't eat enough of these foods, your body makes more of a substance that binds with testosterone, leaving you with less T available to do its job.
In addition to its role as a natural hormone, testosterone is used as a medication, for instance in the treatment of low testosterone levels in men and breast cancer in women.[10] Since testosterone levels decrease as men age, testosterone is sometimes used in older men to counteract this deficiency. It is also used illicitly to enhance physique and performance, for instance in athletes.
"I am so thankful to your company. I have lost 50 lbs. and went from a size 38 waist to an unbelievable 30! I am 56 years old, and now with Andro 400, I feel like I am 25 again. I was taking ramipril for high blood pressure and celebrex for my arthritis. Gone!!! My doctor has not seen a transformation like mine ever! Exercise used to be a chore -- now I have the energy to jog, exercise and be intimate with my partner when we share our love for each other. My mood has changed. I don't get stressed out anymore. I'm so happy now. I'm just a completely different man! Thank you, thank you, thank you!"
In addition to conjugation and the 17-ketosteroid pathway, testosterone can also be hydroxylated and oxidized in the liver by cytochrome P450 enzymes, including CYP3A4, CYP3A5, CYP2C9, CYP2C19, and CYP2D6.[159] 6β-Hydroxylation and to a lesser extent 16β-hydroxylation are the major transformations.[159] The 6β-hydroxylation of testosterone is catalyzed mainly by CYP3A4 and to a lesser extent CYP3A5 and is responsible for 75 to 80% of cytochrome P450-mediated testosterone metabolism.[159] In addition to 6β- and 16β-hydroxytestosterone, 1β-, 2α/β-, 11β-, and 15β-hydroxytestosterone are also formed as minor metabolites.[159][160] Certain cytochrome P450 enzymes such as CYP2C9 and CYP2C19 can also oxidize testosterone at the C17 position to form androstenedione.[159]
There are many Supplements: Zinc for starters about 1/3 of Men have to low Zinc. Make shure you get a good chemical form no oxides best are chelates or citrates. Then there is Arginin and L-Citrullin two amino acids that help Blood flow basacly natural viagra. And then there are things like maca(a plant that you can get in powder form) that hightens libido but not like zinc it doesnt highten the testosteron level. My dad takes the combo of these 3 things kosts you about 30-60$ per Month. Dont be lazy do research on the stuff to make shure you get right dosages and good quality Sups
Remember that each person is unique, and each body responds differently to treatment. TT may help erectile function, low sex drive, bone marrow density, anemia, lean body mass, and/or symptoms of depression. However, there is no strong evidence that TT will help memory recall, measures of diabetes, energy, tiredness, lipid profiles, or quality of life.

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]


Men can experience a range of symptoms if testosterone decreases more than it should. Low testosterone, or low T, is diagnosed when levels fall below 300 nanograms per deciliter (ng/dL). A normal range is typically 300–1000 ng/dL, according to the U.S. Food and Drug Administration. A blood test called a serum testosterone test is used to determine your level of circulating testosterone.
More recently, a study from 2015 noted that consuming 600mg daily of standardized fenugreek extract for eight weeks increased free testosterone levels compared to placebo. The test group also experience an increase the the number of repetitions the could perform in the leg press before reaching failure. And, to top it off, subjects receiving the fenugreek supplement dropped body fat without losing strength.

A team led by Dr. Joel Finkelstein at Massachusetts General Hospital investigated testosterone and estradiol levels in 400 healthy men, 20 to 50 years of age. To control hormone levels, the researchers first gave the participants injections of a drug that suppressed their normal testosterone and estradiol production. The men were randomly assigned to 5 groups that received different amounts (from 0 to 10 grams) of a topical 1% testosterone gel daily for 16 weeks. Half of the participants were also given a drug to block testosterone from being converted to estradiol.
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