Recent content by FDV70

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    "Raising ferritin fast" protocol - no meat??

    OK. Ferrous bisglycinate chelate is non-heme iron, not heme iron. So that eliminates that oddity I couldn't figure out. Seeing your labs before iron supplements makes me wonder if you have an a-globin gene mutation. It would explain why your MCV and MCH are low while not taking iron and why...
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    "Raising ferritin fast" protocol - no meat??

    OK, I got some labs in my inbox thank you. This is very unusual; I've had guys take heme and see an explosion in their hemoglobin. Like RAPID rise. I am trying to understand this, it's really anomalous. Iron is serum iron and fluctuates 10 to 12 times per day. That's not useful in any context...
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    Dihexa for Cognitive Enhancement

    I tried it after reading on a popular nootropic forum in a website beginning with "R" where people take all sorts of things at once and can't accurately report. Anyway, a user in Longecity posted some lab notes in an email from an assistant to the creator of Dihexa warning of uncontrolled...
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    Supplement quick reference (Google sheet)

    Hey all, can I get some crowdsourcing help on a supplement quick reference? I have a hard time remembering what many supplements do, so I created a Google sheet to quickly look things up. Please add to it and edit as appropriate. I do understand that some supplements are not all that...
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    Warning for Men on TRT: Low Ferritin is Bad

    Be sure to read the original page and not just the intra-thread summary as I have massively re-organized things and tightened them up and made some changes. Minor, but still. https://vorck.com/erythrocytosis.html#ferritin
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    Iron Supplementation Protocol to Raise Ferritin FAST While on TRT: The Vorck Protocol

    I wish there were. The basis of raising hepcidin is iron overdose or raising an inflammatory cytokine, Interleukin 6. Real world data show HGB goes up with less than 60mg of non-heme iron and any dose of heme iron. I even tried to raise IL-6 with Turkey Tail which is an "immune booster" (immune...
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    How to Predict Estradiol and DHT at Different Testosterone Doses

    I made this prediction formula into a calculator on my references website. https://vorck.com/trtreferences.html#calculators
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    Iron Supplementation Protocol to Raise Ferritin FAST While on TRT: The Vorck Protocol

    Right after donating. Next time slot after your donation. Donated at noon? Start my protocol at 3pm. Etc.
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    Warning for Men on TRT: Low Ferritin is Bad

    That's right, not as much as phlebotomy.
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    Warning for Men on TRT: Low Ferritin is Bad

    So first we need to understand where serum ferritin originates. Ferritin comes in different types (isoforms) (adapted from my site): H-ferritin (Heavy chain, FTH1). “Heavy” but stores less iron. Typically stores 500–1,500 iron atoms. Heavy has a less stable ferrihydrite core which allows for...
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    Warning for Men on TRT: Low Ferritin is Bad

    hCG is just an LH stand-in. There is no mechanism for it to reduce hepcidin either directly or indirectly. "And your second: Can you clarify -- my understanding is that the high hematocrit on TRT is due to most iron being utilized for red blood cell production in lieu of being bound via...
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    Ferritin levels too low

    It's either something I wrote or something of mine someone added to Here is the whole protocol https://vorck.com/erythrocytosis.html Here is the trial version of Protocol 2: https://vorck.com/protocol-revision-apr2025.html
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    Help a guy to fine-tune his bimix dose

    Thanks so much FunkOdyssey! 8 units was good for 2 hours. Much appreciated. [The only curious thing was that it took 10 minutes to 'hit' even with massaging it around, but no matter.]
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    Help a guy to fine-tune his bimix dose

    I finally got bimix that works, I was getting a premix product and not a lyophilized product. It was probably inert from lack of refrigeration. I did 4 units of a 30mg Papaverine, 1mg Phentolamine per 1ml product. I got a chub for about 40 minutes. My "antidote" vial is on backorder so I want...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

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

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