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    Iron on TRT? - No libido

    Just got my ferretin back at 34 (although other iron numbers higher?). I suppose this is low enough to cause symptoms? Also tested for H Pylori on a whim, as had heard this could cause low iron? Strangely came back positive, do you know anything about this? Ferritin01 34 prior(94)...
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    Iron on TRT? - No libido

    Thanks. Did you notice libido issues? I do struggle with fatigue but thats existed for a long time (even when iron levels were normal). Have really been struggling with lack of libido recently and considering coming off trt again as a result. Only other things I'm considering are maybe...
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    Iron on TRT? - No libido

    Thanks! Don't have my ferretin levels back quite yet (will soon). Basis my numbers above is it safe to supplement iron (based on the iron total and saturation being low?)
  4. B

    Iron on TRT? - No libido

    26m who has struggled on TRT for a long time. In summer 2021 was prescribed test cypionate which immediately causes complete loss of libido, which only returned about 6 weeks after cessation of treatment. Testosterone did not naturally recover (although libido did), and resumed treatment this...
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    25M - Going back on TRT?

    Hey, I'm only 25 but about a year ago I started complaining of fatigue, low motivation, mood, lower sex drive, etc and bloodwork showed low testosterone (~220). I repeated this bloodwork twice (once more showing ~220 and one normal test around 540), and basis my symptoms elected to try trt. In...
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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