negatives and risks of not backfilling the pathway [DHEA, PREG]

Backfilling is overhyped, IMHO. DHEA more than Preg, can be not well tolerated in a lot of guys, aromatases easily, etc. But like all of this some love DHEA, some love Preg, and some like me avoid it entirely. There are no negatives to not supplementing...it's like one of these things that (IMHO) it's treating a number on a lab page vs is it really necessary to do it.
 
I know we have many threads on back filling the pathways, but many members cannot deal with the HCG and DHEA because of estrogen levels or sleep issues. I think back filling is a very individual thing, I do supplement with 25 mg of DHEA daily and 500 IU of HCG every 3 1/2 days. But that's me.
 

hCG Mixing Calculator

HCG Mixing Protocol Calculator

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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