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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Target T levels & Defy
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<blockquote data-quote="xqfq" data-source="post: 168442" data-attributes="member: 38167"><p>I’m a little on the fence about the accuracy or value of the TruT calculator in the absence of mysterious side effects. For my own labs and symptoms (tracked using Nelson’s TRT Analyzer), the older free T calculated method and the direct free T more closely match my symptoms (numbers relative to the provided ranges) than the TruT calculator.</p><p></p><p>I’ve also started using the TruT calculator on bodybuilders’ lab work and it seems to be even more subjectively wrong there, too. For instance, if you use this IFBB pro’s HRT numbers (<a href="https://www.youtube.com/watch?v=J4t4BeQaL8g" target="_blank"><span style="font-size: 16px">https://www.youtube.com/watch?v=J4t4BeQaL8g</span></a>), you’ll get a physiologic TruT free T. But I think he’s likely to be 2-2.5x the upper end of free T range given that he maintains his LBM on his HRT dose. His direct free T labs show numbers in accordance with what I’d expect.</p><p></p><p>I’ve done this same thing with other bodybuilders and I find similar, making me think the TruT calculator is missing something, or is predictive only for the majority of people but for a given individual may not be accurate. Their data shows this, if I recall correctly - there are consistently outliers in their model, as it’s predictive but not exact. I’ve contacted the authors with my own concern that the calculator doesn’t take into account magnesium status (a known modulator of free T), but haven’t heard back.</p></blockquote><p></p>
[QUOTE="xqfq, post: 168442, member: 38167"] I’m a little on the fence about the accuracy or value of the TruT calculator in the absence of mysterious side effects. For my own labs and symptoms (tracked using Nelson’s TRT Analyzer), the older free T calculated method and the direct free T more closely match my symptoms (numbers relative to the provided ranges) than the TruT calculator. I’ve also started using the TruT calculator on bodybuilders’ lab work and it seems to be even more subjectively wrong there, too. For instance, if you use this IFBB pro’s HRT numbers ([URL='https://www.youtube.com/watch?v=J4t4BeQaL8g'][SIZE=16px]https://www.youtube.com/watch?v=J4t4BeQaL8g[/SIZE][/URL]), you’ll get a physiologic TruT free T. But I think he’s likely to be 2-2.5x the upper end of free T range given that he maintains his LBM on his HRT dose. His direct free T labs show numbers in accordance with what I’d expect. I’ve done this same thing with other bodybuilders and I find similar, making me think the TruT calculator is missing something, or is predictive only for the majority of people but for a given individual may not be accurate. Their data shows this, if I recall correctly - there are consistently outliers in their model, as it’s predictive but not exact. I’ve contacted the authors with my own concern that the calculator doesn’t take into account magnesium status (a known modulator of free T), but haven’t heard back. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
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