Blood Tests

New Zealand does not let me give blood to decrease high hematocrit on TRT

Jul 12

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Hi Guys Blood lab turned me away for having Haemoglobin of 198. Apparently the limit is 185(Here in New Zealand) I am currently on 80mg(split twice a week 40+40)of test cyp deep IM. Have been on this for 4 months and going well. Can't do and...

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Iron Supplementation Protocol to Raise Ferritin FAST While on TRT: The Vorck Protocol

Jul 12

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The Vorck Protocol Summary Background: The protocol was developed by a TRT user since 2001 who had difficulty recovering ferritin levels after blood donations. After conducting personal research and consulting with a hematologist in May 2021, he...

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Comparison of U.S. Clinical Guidelines on Hormone Replacement Therapy (HRT) in Women

Jul 09

These are not usually what many US clinics follow, but I wanted to show what the guidelines say. Comparison of U.S. Clinical Guidelines on Hormone Replacement Therapy (HRT) in Women Multiple U.S. medical organizations—including The Menopause...

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Testosterone/Estradiol Ratio: The Hidden Key to Low Libido in Men with Sexual Dysfunction?

Jul 07

Poster 149: Testosterone/Estradiol Ratio and Low Libido in Men with Sexual Dysfunction Title TESTOSTERONE: ESTRADIOL RATIO A STEP FORWARD TOWARDS THE UNDERSTANDING OF LOW LIBIDO IN MEN WITH SEXUAL DYSFUNCTION Authors Rodrigo Freddi, Rubens...

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Estrogen-It's what makes a real man

Jul 05

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Study: Low estrogen can cause problems for men Study: Low estrogen can cause problems for men (2013) Dr. Joel Finkelstein, an endocrinologist at Harvard Medical School and the lead author of a new study, talks about the effects of declining...

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Metabolic benefits of estradiol and testosterone in men and women

Jul 05

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As we very well know T s metabolites estradiol and DHT are needed in order to reap full beneficial effects of testosterone. Ts metabolites estradiol and DHT are needed in healthy amounts to experience the full spectrum of testosterones...

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Why Use hCG With TRT?- A Clinical Review

Jul 02

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Using hCG in Men on Testosterone Replacement Therapy (TRT) – A Clinical Review Introduction Exogenous testosterone replacement therapy (TRT) can profoundly suppress the hypothalamic-pituitary-gonadal (HPG) axis through negative feedback. By...

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Smoking Cessation's Effects on Male Hormonal Levels

Jun 22

This scientific paper investigates the effects of smoking cessation on hormonal levels in men, specifically focusing on steroid hormones like testosterone, DHEA, DHEAS, cortisol, and sex hormone-binding globulin (SHBG). The researchers aimed to...

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Elevated Hematocrit from Testosterone Therapy vs High-Altitude Adaptation: A Comparative Analysis

Jun 22

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From this thread: WARNING: Do not believe Internet "gurus" proclaiming no need to manage hematocrit on TRT - Excel Male TRT Forum Underlying Physiological Mechanisms Testosterone Replacement Therapy (TRT) and Erythrocytosis: Exogenous...

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Pregnenolone in Men: Help determining proper dosage and frequency

Jun 21

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Hi all, I've been experimenting with pregnenolone for over a year now, with varied success. I seem to get benefits at 100mg (such as higher libido, more pronounced nighttime erections and better sleep); however, I don't get these results...

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WARNING: Do not believe Internet "gurus" proclaiming no need to manage hematocrit on TRT

Jun 17

Debunking the Myth About High Hematocrit in Men on TRT I know many of you want to feel reassured that managing hematocrit isn’t necessary. However, misinformation is spreading, with some "bro science" videos and even a few so-called expert...

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Testosterone Therapy Induced High Hematocrit- Can Therapeutic Phlebotomy Be a Double-Edged Sword?

Jun 14

https://ec.bioscientifica.com/view/journals/ec/aop/ec-24-0283/ec-24-0283.xml Therapeutic Phlebotomy: A Double-Edged Sword? Current Guidelines: "Several endocrine organizations mention therapeutic phlebotomy as a means of treating TTh–induced...

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TRT Hormone Predictor Widget

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038