adrenal

  1. Gianluca

    Stimulation of aldosterone, renin, and cortisol by tryptophan

    Abstract Tryptophan administration was used to evaluate the possibility that serotonergic neurons are involved in regulating the release of cortisol, renin, and aldosterone. Eleven studies were undertaken using 2 or 10 g tryptophan administered to fasting patients in continued supine posture...
  2. D

    Fast Metabolizers?

    Anybody have any theories on why one guy does great on 100mg test/wk and others (like myself) struggle to get their say free test in a good range? I remain curious. Could adrenal or thyroid be a reason?
  3. B

    What tests should I request for my symptoms?

    Symptoms: - difficultly getting going each morning - crash between the hours of 1-4PM every day - perk up in the evenings Suspect some sort of adrenal dysfunction. DHEA-S: 424.5 ug/dL (102.6 - 416.3) Progesterone: 2.62 ng/mL (<1.40) 40 y.o. male, 6'1", 200#, 15 mg Clomid ED. 5000IU D-3...
  4. Nelson Vergel

    Cortisol Regulation (an Overview)

    By James Wilson, DC, ND, PhD Cortisol is responsible for many life-sustaining functions. Although cortisol is secreted by the zona fasciculata in the adrenal glands, it is regulated primarily by the brain. The amount of cortisol circulating at any particular moment is regulated by a complex...
  5. Nelson Vergel

    Tired of Being Tired?- A New Fatigue Exploration Panel Can Help

    Fatigue is can be very frustrating for many people since it can have several causes. There's the normal tiredness we feel at the end of every day, the tiredness that comes from being a hard-working person. But sometimes that fatigue goes beyond just the "norm". It pervades your muscles, fogs up...
  6. Nelson Vergel

    The Adrenal/Thyroid Connection

    Mary Shomon: How is proper adrenal function related to a thyroid problem? Drs. Shames: A major connection exists between low thyroid and low adrenal. Low adrenal, also called adrenal insufficiency, can actually cause someone's thyroid problem to be much worse than it would be otherwise...
  7. Nelson Vergel

    Are you tired even with normal testosterone? Adrenal fatigue may be the problem.

    Adrenal fatigue is a collection of signs and symptoms called a functional somatic syndrome where there are imbalances that cause the reserve present in the adrenal gland to be depleted below the necessary level. When evaluating healthy adults, some studies have found that 40 percent of people...
  8. Nelson Vergel

    Are you tired even with normal testosterone? Adrenal fatigue may be the problem.

    Adrenal fatigue is a collection of signs and symptoms called a functional somatic syndrome where there are imbalances that cause the reserve present in the adrenal gland to be depleted below the necessary level. When evaluating healthy adults, some studies have found that 40 percent of people 60...
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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