High E2 may not be bad afterall

In the study the average estradiol of this cohort is almost exactly 20 pg/mL. Also:

Of note, the magnitude of increase in T/S ratio [possible longevity marker] associated with a 1 SD higher plasma E2 concentration was comparable with having a BMI 3.6 kg/m2 lower, and two thirds that associated with being 3.6 years younger. Therefore, these findings in an epidemiological study illuminate an association of sex hormones with biological age in older men (see Figure). However, the predictive value of E2, SHBG and LTL in any individual older man is unproven and likely to be limited in view of the moderate associations and large inter-individual variations observed in these parameters.
Testing E2 was via mass spectrometry.
 
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For additional reference, more than 95% of this group are expected to have estradiol in the range of 4 to 36 pg/mL. And 99.7% are expected to have estradiol less than 44 pg/mL.
 

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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.

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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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