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  1. FunkOdyssey

    Debate about the Free Testosterone Hypothesis: Useful Tool or Misguided Mirage?

    Dr. Anawalt won handily. Dr. Handelman's fixation on difficulties with measuring free testosterone did nothing to dispute the validity of the free hormone hypothesis. He had no answer to the numerous human epidemiologic studies which support it.
  2. FunkOdyssey

    Experiences and Questions: Personal Experiments with Oral Native Testosterone Base & Enclomiphene (TRT+), Testosterone Propionate, HCG and more

    Yes, but the negative feedback from oral native testosterone is minimal to begin with. We have internal data showing, on average, men's LH only dropped by 0.8 IU/L (non-significant and within margin of error) when using a single 600 mg dose of native oral T daily. Yes, it certainly is, unless...
  3. FunkOdyssey

    Building a TRT protocol around hCG

    Very interesting result with the test suspension results. I think there are a percentage of men that do maintain long-term libido on testosterone alone, another group that maintains it long-term with hCG, and I would imagine the fraction that cannot maintain libido despite the combination is...
  4. FunkOdyssey

    Thyroid , would boosting T4 help anything

    Mine is also like this (lower end FT4, midrange FT3) and past experiments with supplementing thyroid hormone only made me feel worse. Knowing what I know now, I never would have messed with it at all.
  5. FunkOdyssey

    Still trying to figure this out - 120mg to 100mg to now 80mg - what a rough week

    These are not good. You are right on the line of metabolic syndrome with these values (HDL <= 40 and Triglycerides >= 150 is the cutoff), and the Trig/HDL ratio of 3.4 is associated with significantly elevated CVD risk, regardless of your LDL. We had a great discussion on this in a recent...
  6. FunkOdyssey

    Thyroid , would boosting T4 help anything

    This, because free T3 is what matters. It would be analogous to supplementing testosterone when your total testosterone is on the low side, even though your free testosterone was at a good level. You don't want high or "optimal" levels of thyroid hormone either - this is associated with a...
  7. FunkOdyssey

    Pharmacokinetic Profile of Testosterone Suspension: A Case Study

    I love that you did this experiment and wrote up all of the details for us. Very puzzling results though!
  8. FunkOdyssey

    Building a TRT protocol around hCG

    Cortex released a video on this concept of using hCG and DHEA as the foundation of a protocol and then tailoring testosterone dose around that: I have kept going back and forth with hCG myself. I've noticed, now that I have some Janoshik-verified potent hCG (eutrig), if I take 250 iu EOD...
  9. FunkOdyssey

    Still trying to figure this out - 120mg to 100mg to now 80mg - what a rough week

    Fasting insulin and lipid panel (HDL and triglycerides specifically). Many of us had sleep issues in the beginning, and water retention is pretty much a given. Most or all of the water retention disappears eventually as you adapt to the new levels. You will certainly be able to find a dose...
  10. FunkOdyssey

    Still trying to figure this out - 120mg to 100mg to now 80mg - what a rough week

    That's your fasting glucose, not fasting insulin. You want to see your fasting insulin to determine whether you have insulin resistance. Your lipid panel has some big clues also, between HDL, triglycerides, and their ratio. Insulin resistant men often have a rough time on TRT. They aromatize...
  11. FunkOdyssey

    Still trying to figure this out - 120mg to 100mg to now 80mg - what a rough week

    These free T numbers you are reporting are bogus - likely labcorp direct free T if I had to guess. Your real free T (vermeulen calculation) with 100 mg was 21.8 ng/dL assuming 4.3 albumin, which is a very reasonable level for men on TRT. You have a high SHBG, so this reasonable free T is...
  12. FunkOdyssey

    Advice on next steps - mid-low free T

    True, but importantly, there's not even a hint in these 20+ studies that looked at effects of TRT on cognition that the lack of GnRH is causing cognitive deficits either. Some trends in that direction would be very persuasive in terms of convincing me to take this GnRH issue seriously. There...
  13. FunkOdyssey

    Experiences and Questions: Personal Experiments with Oral Native Testosterone Base & Enclomiphene (TRT+), Testosterone Propionate, HCG and more

    This is quite plausible. Your absolute level of E2 is low, the ratio of T & DHT / E2 is very high, and you have enclomiphene antagonizing estrogen receptors on top of that. I would rather take less of something in this situation than add another compound to increase estradiol. Reducing the...
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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