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High Protein Diets Don't Counter Anti-Anabolic Effects of Low Energy Intake: 29% Reduction in Free Testosterone, -16% IGF-1 With 40% Energy Deficit Despite 2.4g/kg Protein

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Melt the belly, keep the muscle - a decent amount of protein is key, but more ain't more and as a recent study shows: This has nothing to do with hormones. If you are no newbie to the SuppVersity you will be aware that there is no way to escape the "anti-anabolic" effects of suboptimal energy intakes. You will also know that protein catabolism cannot be countered by the ingestion of extra protein (see "Protein Intake & Muscle Catabolism: Fasting Gnaws on Your Muscle Tissue and Abundance Causes Wastefulness" | read more ). And, last but not least, you will be aware of the fact that the best you can do is to eat enough protein to keep the protein synthetic machinery running by consuming mTOR-promoting fast-absorbing high BCAA (leucine) protein sources such as whey protein ( learn more about whey protein). The data from the Pasiokos study shows: 1.6g/kg and not 2.4g/kg allows for the optimal balance of fat loss and lean mass retention (Pasiakos. 201...
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True or False - High or Low Protein Intakes Have Profound Influence on Testosterone, SHBG, Estrogen, Cortisol & Co?

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We are what we eat! Acknowledged, but does this also go for your hormones and different in protein intakes? Let's have another look at the contemporarily available research to figure that out. In recent study in the International Journal of Sport Nutrition and Exercise Metabolism a group of researchers from the Faculty of Physical Education and Recreation at the University of Alberta reports: "Supplementing a typical daily food intake consisting of 0.8 g of protein ·kg-1·d-1 with a whey protein isolate (an additional 0.8 or 1.6 g·kg-1·d-1) [...] had no effect on glucose, insulin, testosterone, cortisol, or growth hormone following the final mea l" (Forbes. 2013). I know, anything else would have been a real shocker. What it wouldn't be, though, is a total surprise. If you dig through the available literature you can easily find data that would support the scientists' assumption that doing an experiment "to investigate the effects of a controlle...
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Low Testosterone, Low Life Expectancy: Plus: Chinese vs. US - Do the Same Reference Ranges Apply for Everyone?

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This is what Photoshop and creativity can tell us about aging men. It has been a while since we've taken a closer look at the effects of testosterone deficiency and its replacement aka TRT. Basically that's why I decided not to waste the interesting findings from a recently published study in the The Journal of Clinical Endocrinology and Metabolism (Yeap. 2013) in the Facebook News. In combination with the findings Xu et al. report in a paper on the difference in testosterone concentrations in young healthy US versus Chinese men the Yeap study does after all make a decent addition to the 269 of hitherto ~1500 archived SuppVersity articles that deal in one way or another with the famous androgen. Virile men live longer! Ca. 30% longer, to be precise. If you take a look at the link between serum testosterone, free testosterone and DHT and the all-cause mortality risk of the 16,451 community-dwelling older men from Perth in Western Australia it should be obvious that th...
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Serum & Intramuscular Testosterone, DHT and Androgen Receptor Response to High vs. Low Volume Training

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Another set for another ng of testosterone? Does it work that way and is it worth it - not just on paper, but in terms of real gains? I know that we don't know! And among the many things we don't know the influence of the post-workout elevation in the long-thought "anabolic" hormones testosterone , growth hormone , and co. is unquestionably one of my personal favorites. You've read about it, here at the SuppVersity many times and I got to tell you in advance that the absence of convincing evidence for / against its importance will become a problem in the bottom line of today's SuppVersity article dealing with the intriguing results of an experiment that has been conducted by Lukas J. Farbiak as part of his Honors Thesis (Farbiak. 2013). "Effects of Lower- and Higher-Volume Resistance Exercise on Serum Total and Free Testosterone, Skeletal Muscle Testosterone and Dihydrotestosterone Content, and Skeletal Muscle Androgen Recept...
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Serious Lifting Increases SHBG, Muscle & Total Mass, While Decreasing Total and Trunk Fat in Overweight Young Men. Plus: Why an Increase in SHBG is Nothing to Be Afraid Of

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Warning: Used correctly, this dumbbell will increase your BMI, your glucose sensitivity and - at least if you still got some fat to shed - your SHBG! And what's the result? Metabolic health, strength and a significantly improved body composition! If you read the headline of today's news closely and did not freak out due to bro-scientific indoctrination and the firmly held believe that "SHGB is bad for you, bro. I'll bind your testosterone, bro!" you will probably have noticed that the 12-week resistance training regimen 36 of the 49 participants (BMI 31.4 kg/m² age 22 years) of a recently published study by Roberts et al. underwent would have to be considered an epic fail, if we went for the mainstream assessment of workout / dietary success - the infamous body mass index. If the add the broscientific notion that you best reduce your SHBG to zero (or into the negative range, if you find a way to do so), squats, deadlifts, lunges, rows, side raises, overhead pr...
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Can 5 Cups of Coffee Boost Testosterone to Estrogen Ratio in Overweight Men Transiently by ~200%? Plus: SHBG Its Own Receptor and Its Role in Prostate & Breast Cancer

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Testosterone booster in men and estrogen amplifier in women? As if there were not already enough good reasons to get your daily dose of the 'kingly' brew ;-) You would not have to be a diligent student of the SuppVersity to know: Coffee is a truly remarkable brew. Even mainstream media has gotten wind of the multitude of beneficial effects a moderate intake of the former drink of the kings and popes can have on your health and if it was not for the authors and newscasters blind reliance on whatever the press release guys are telling them, it would probably not even have been necessary for me to broach the beneficial effects coffee can have on your metabolic health and overall well-being in posts like " Coffee - 3 Cups a Day Keep Insulin at Bay ", " Pre-Workout Caffeine: Fat Liberator, Substrate Modulator, Trans-Fatty Acid Eliminator & Performance Upregulator! " and many more . So what is it this time? What else can coffee do for you? I guess som...
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Chamois Creme Potential Reason for Elevated Estrogen in Cyclists +Triathletes Have 2x More Testosterone Than Average Men and 71% More Than Active Individuals

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Image 1: Norman Stadler 2004 winner of the Ironman Hawaii probably had a hell of a testosterone boost, when this photo was taken (img. Kai Baumgartner. 2004) Disturbances of the endocrine (=hormonal) milieu are among the hall-mark features of what sport scientists call the "female athlete triad". The unholy trinity of osteoporosis, disordered eating and, as a direct consequence of the aforementioned hormonal imbalances, menstrual disorders. Men, the purportedly "stronger sex", on the other hand are supposedly pretty resistant to exercise-, or, I should say, overtraining-induced hormonal imbalances - bullshit? Well, probably... after all, with insufficient fuel and recovery everyone, man or woman will eventually maneuver him- or herself into a situation where his endocrine system is no longer functioning optimally. A recent study from UCLA does yet show that mother nature must have been aware that a) exercise is part of what the "hunters" (=us men ;-) d...
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