supplements

  1. G

    More supplement hysteria

    Recently, the media were abuzz again with tales of horror, worthlessness and danger about supplements. It's tiresome for those of us trying to navigate between supplement sales people and the minions of pharma who fear the competition these supplements may represent to often horribly...
  2. JWSimpkins

    5 Brain Boosting Supplements

    As you age, it's almost inevitable that you will experience somewhat of a decline in cognitive performance. Short-term memory loss, lack of mental focus, problem solving difficulties, low motivation and mood disturbances can all be indicative of this age-related decline. At best, these issues...
  3. Nelson Vergel

    What kind of men use multivitamins? A cross-sectional study

    Overall, 36 % of men reported current multivitamin use. Men who were older, current smokers, and currently using aspirin were 143, 43, and 74 % more likely to use multivitamins only. Men having a history of high cholesterol were 16 % more likely to use multivitamins only. A 14, 24, and 26 %...
  4. Nelson Vergel

    Muscles and meth: Drug analog identified in 'craze' workout supplement

    There may be a reason why your work out supplement is giving you so much energy... An international team of scientists have identified potentially dangerous amounts of methamphetamine analog in the workout supplement Craze, a product widely sold across the U.S. and online. The study, published...
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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