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Too Much of a Good Thing - Selenium: Little More Than in Many 'Multis' Can Trigger Subclinical Hypothyroidism, Less Selenium (25% of the RDA) Cuts 13% Body Fat in 10 Weeks

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Three things make this study special #1 it's human study, #2 it was conducted in a metabolic ward and #3 it didn't use potentially toxic Se supplements If you ask around about how you can accelerate your metabolism, selenium and iodine, which are both important players in the concert of thyroid hormones, are usually among the first supplements to be mentioned. The bad news is: If you are not deficient in one of them, taking copious amounts of either of them may well slow down your metabolism significantly. In view of the fact that the mechanism that triggers this side effect for selenium is a bit more straight forward than it is for iodine, I would like to start this new series with the initially mentioned essential trace element. Learn more about your thyroid , T3 , and T4 at the SuppVersity Green tea messes w/ your thyroid hormones TSH alone is not a good measure of thyroid health Fructose prevents decline of T3 while dieting T2 has thyroid-suppressing ...
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TSH - A Critical Re-Evaluation of Its Non-Significance: Why Your TSH May Tell You Nothing About Your Thyroid Health

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Symptoms of hypo- and hypothyroidism (figure from youngstershub.com)  In previous articles about overtraining I've already touched on the possibility that training too much and eating to little can put you into a state where your TSH levels are low, even if the same goes for your free T3 and free T4 values. Normally, your hypothalamus should correct low levels of the two active thyroid hormone T3 and T4 by increasing TSH. This physiological up-and-down is what doctors use to diagnose hypo- and hyperthyroidism by measuring TSH and in many cases only TSH - text-book practice, but still questionable against the background of the latest science. Learn more about your thyroid , T3 , and T4 at the SuppVersity Green tea messes w/ your thyroid hormones Overfeeding affects thyroid hormones Fructose prevents decline of T3 while dieting T2 has thyroid-suppressing ef-fects as T3 & T4 Dieting makes you "hypothyroid" - temporarily Levothyroxine may not b...
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Tryptophan, an Overlooked Natural "Anabolic"? Increased Follistatin (Myostatin Inhibitor), mTOR, and IGF-1 In-Vitro and In-Vivo Shed a Whole New Light on Serotonin Precursor

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Poultry is high in tryptophan and so is spirulina, cod, soy beans, parmesan and pork. They all have higher tryptophan contents than turkey. So, it doesn't always have to be poultry ;-) As a SuppVersity  reader you know that "[n]utrition plays a key role in the maintenance of muscle and bone mass, and dietary protein deficiency has in particular been associated with catabolism of both muscle and bone tissue" (Dukes. 2015). You will also be aware that leucine and some other amino acids play a particularly important role in the accrual and maintenance of muscle mass. Until today, l-tryptophan, the amino acid the "happy neurotransmitter" serotonin is not among the usual suspects when it comes to building muscle. If the results of a recent study from the Georgia Regents Univ.  translate into practic-ally relevant research, this may change soon (Dukes. 2015). Learn more about amino acid and BCAA supplements at the SuppVersity Glutamine Helps W/ Diabetes...
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Study Confirms: Excessive Green Tea Consumption (1-2L) May Reduce Your Thyroid Function (T3, T4) by Almost 50%

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If you drink green tea 24/7 you don't have to wonder if your thyroid is sluggish and your belly growing. I've alluded to the anti-thyroid effects of green tea extracts in previous articles. That simply drinking green tea (albeit excessively) would trigger the exact same effects, though, is news. News I got from a very recent study from the  Zagazig University Faculty of Medicine  in Egypt. The authors, Abulfadle K. A., Bakhaat G. A., Shaik R. and Tantry B. A., studied the effect of excessive green tea intake on body weight and serum thyroid hormones in male mice and compared their results to what happens if the rodents are fed only fluoride and caffeine. Overtraining puts you at a similar risk of low thyroid levels as tons of green tea Female Athletes' Body Comp Suf- fers From Dieting Athlete's Triad is not a female exclusive phen. Athlete's Triad - Analysis of the Vicious Cycle Athlete's Triad - How to Recover Part 1/3 Athlete's Tri...
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The Overfeeding Overview: High Fat, Carb, Protein, MCTs, Leptin, Testosterone, T3 & Reverse T3 - Get an Overview of the Consequences of Short- & Long-Term Overfeeding

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High fat + high carbohydrate foods like mini doughnuts are exactly what you should not eat on a refeed day, let alone during weeks of bulking. Do you want to know what happens during days and weeks of gluttony? How the effects "bulking" will have on your body weight and composition, depending on where those extra calories come from? Have you wondered what the optimal nutrient composition on refeed days may look like? And are you concerned about the potential the health consequences of bulking? Yes? In this case, I would suggest you take a closer look at the following overview of the research. An overview that is probably not complete, but it should suffice to provide preliminary answers to the aforementioned questions. Learn more about the effects of your diet on your health at the SuppVersity Only Whey, Not Soy Works for Wheytloss Taste Matters - Role of the Taste Receptors Protein Satiety Shoot-Out: Casein vs. Whey How many Carbs Before Fat is Unhea...
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