Nelson Vergel

Nelson Vergel

Nelson Vergel

Can Viagra Help the Immune System?

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A growing body of evidence shows that sildenafil (Viagra) exerts immunomodulatory effects. Its positive action was demonstrated in treating severe autoimmune diseases and cancer. In addition, anti-inflammatory and anti-aggregation effects of...

Effect of DHT on Prostate and Sexual Function: Review of Studies

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Table of Contents Benefits associated with lowered serum DHT levels after 5?-reductase inhibitor (5AR-I) therapy in men have contributed to a misconception that circulating DHT levels are an important stimulus for androgenic action in target...
ExcelMale.com Meal Plan
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Table of Contents Monday 7am: 2 scrambled eggs, 2 oz of smoked salmon, 1/2 avocado, 1 small serving of berries. 11am: Kale Salad w/ 5 oz of shaved turkey or chicken breast, w/ avocado, almonds and EVOO/mustard vinaigrette (substitute...
Testosterone - The New How Much Do You Bench
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Table of Contents By Ben House |PhD,CFMP,CN, FDN, fNMT, Functional Medicine Costa Rica I remember mowing through Muscle and Fitness magazines when I was 18, then pounding three scoops of NO xplode™ and dismantling 8 combinations of...
Low Testosterone After Anabolic Steroids: A Review of Online Site PCT Protocols
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Male central hypogonadism secondary to exogenous androgens: a review of the drugs and protocols highlighted by the online community of users for prevention and/or mitigation of adverse effects Androgen- or anabolic steroid-induced hypogonadism...

Testosterone versus clomiphene citrate in managing symptoms of hypogonadism in men

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Table of Contents I could not see clomid dosages used. This makes a big difference, as we now no too much zuclomiphene causes inverse effects. According to Dr Saya, this does not seem to happen in the low-dose patients they see, which...
Testosterone Administration Increases Liver Volume
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Animal data shows that testosterone administration increases the volume of some parenchymal organs. However, the effects of exogenous testosterone on solid abdominal organs in humans remain unknown. The present study evaluated the effects of...
Testosterone Increases Liver Volume in a Dose Dependent Manner
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Animal data shows that testosterone administration increases the volume of some parenchymal organs. However, the effects of exogenous testosterone on solid abdominal organs in humans remain unknown. The present study evaluated the effects of...
Growth Hormone Releasing Hormones and Peptides: Research History
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Nelson Vergel, the founder of ExcelMale.com, ClinicOptimizers.com and DiscountedLabs.com, interviews Dr. Richard Walker about the history of research on GHRH and GHRPs. Richard F. Walker, Ph.D., R.Ph is well known for having popularized...

Men with Low Testosterone At Higher Risk of Autoimmune Disease

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Clin Rheumatol. 2016 Dec;35(12):2983-2987. Epub 2016 Jun 20. Hypogonadism and the risk of rheumatic autoimmune disease. Baillargeon et al Abstract Testosterone deficiency has been linked with autoimmune disease and an increase in...
UK policy statements on testosterone deficiency
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Summary To address widespread media and scientific concerns over the appropriate treatment of TDS with Testosterone Therapy (T Therapy), the Executive Committee of the British Society for Sexual Medicine developed eight consensus statements...
Effect of Testosterone Injections on Estradiol and DHT in Young and Older Men
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Table of Contents The Effects of Injected Testosterone Dose and Age on the Conversion of Testosterone to Estradiol and Dihydrotestosterone in Young and Older Men "We found that during administration of graded doses of TE, the older men had...
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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