Less than 50 mg of T per week

That's basically argument from authority. They may simply be responding to the demands of their customers, who by and large have more-is-better thinking. I see that @Willyt has already mentioned Xyosted. Its success dispels the notion that supra-physiological doses are needed to ameliorate symptoms of hypogonadism. The main thing I object to is starting new patients on 100+ mg TC/week when many will be harmed by this practice.

There is an evolution-based argument in favor of targeting average serum levels for healthy young men, which can be the 600-700 ng/dL figure of earlier decades, predating the recent decline. The reasoning is that nature had selected those levels as optimal for reproductive success. Reproductive success is then suggested to be a decent proxy for overall success in life; you have the resources and skills to attract a mate and ensure the survival of the resulting offspring. So in the end this gets you back to those physiological doses of testosterone, around 3-9 mg/day.
I'm one of these layperson guys that does well on a smaller dose, probably around 70mg/week. That puts me in the Cataceous camp of thinking. One concern I've always had is that, acknowledging the ideal of 4-8 mg/day that young men produce and use, it seems likely to me that our pathway of T delivery via injecting into the muscle or subcutaneous fat is no where near as efficient as what nature provides. Perhaps, when we inject IM we have to inject more T into the muscle to finally net out to the same 4-8mg that naturally arrives at the necessary sites for use by the young man. If that were true then higher daily allotments of 10, 12, 14 or more mg/day might be necessary . . .
 
I'm one of these layperson guys that does well on a smaller dose, probably around 70mg/week. That puts me in the Cataceous camp of thinking. One concern I've always had is that, acknowledging the ideal of 4-8 mg/day that young men produce and use, it seems likely to me that our pathway of T delivery via injecting into the muscle or subcutaneous fat is no where near as efficient as what nature provides. Perhaps, when we inject IM we have to inject more T into the muscle to finally net out to the same 4-8mg that naturally arrives at the necessary sites for use by the young man. If that were true then higher daily allotments of 10, 12, 14 or more mg/day might be necessary . . .
I agree. I'm of the opinion that exogenous T cannot be compared to endogenous production, along with endogenous DHEA, pregnenolone, progesterone, DHT, estradiol, etc. Everything was in balance. Of course, I can't explain why many men seem to do well with a dosage of between 100 mg & 200 mg, whether weekly or in divided doses and I'm not talking about clinics that start every man on 200 mg, weekly. But, I'm willing to try low dosing, whether daily or EOD. I hope I'm pleasantly surprised.
 
I'm one of these layperson guys that does well on a smaller dose, probably around 70mg/week. That puts me in the Cataceous camp of thinking. One concern I've always had is that, acknowledging the ideal of 4-8 mg/day that young men produce and use, it seems likely to me that our pathway of T delivery via injecting into the muscle or subcutaneous fat is no where near as efficient as what nature provides. Perhaps, when we inject IM we have to inject more T into the muscle to finally net out to the same 4-8mg that naturally arrives at the necessary sites for use by the young man. If that were true then higher daily allotments of 10, 12, 14 or more mg/day might be necessary . . .
Absorption via injection is almost 100%. And once the testosterone gets into circulation your body can't tell if it was injected or manufactured in the testicles. At that point the only differentiation is in the pharmacokinetics—basically the serum concentration and how it changes over time. If your TRT method provides a reasonably natural diurnal variation then you'd have to look at other factors if you're casting about for some reason to justify unnaturally high doses. One such factor is HPTA disruption. However, even if there's something to it, it's akin to fixing a nearly-flat tire by letting air out of the others to match. You restore some balance but degrade the performance of the entire system.

For example, there's a school of thought that says that symptoms of high estradiol should be addressed by increasing the dose of testosterone until the issue resolves. It's somewhat plausible because at higher doses androgenic activity is increasing faster than estrogenic activity. So maybe you do regain relative balance between the two, but you're left with unnaturally high levels of both, which can easily disrupt other systems. The irony is that the original symptoms of high estradiol frequently come about because the starting dose of testosterone was too high.
 
Absorption via injection is almost 100%. And once the testosterone gets into circulation your body can't tell if it was injected or manufactured in the testicles. At that point the only differentiation is in the pharmacokinetics—basically the serum concentration and how it changes over time. If your TRT method provides a reasonably natural diurnal variation then you'd have to look at other factors if you're casting about for some reason to justify unnaturally high doses. One such factor is HPTA disruption. However, even if there's something to it, it's akin to fixing a nearly-flat tire by letting air out of the others to match. You restore some balance but degrade the performance of the entire system.

For example, there's a school of thought that says that symptoms of high estradiol should be addressed by increasing the dose of testosterone until the issue resolves. It's somewhat plausible because at higher doses androgenic activity is increasing faster than estrogenic activity. So maybe you do regain relative balance between the two, but you're left with unnaturally high levels of both, which can easily disrupt other systems. The irony is that the original symptoms of high estradiol frequently come about because the starting dose of testosterone was too high.
Interested. Who said to increase testosterone to lower the effect of estrogen? I've never heard that one before.
 
Interested. Who said to increase testosterone to lower the effect of estrogen? I've never heard that one before.
Dr. Nichols and presumably some others in the TOT crowd. ChatGPT says "Some of his discussions of TRT, while emphasizing a holistic approach, have included mentions that, in specific cases, higher T doses may be needed to optimize the ratio of T to E."
 
Dr. Nichols and presumably some others in the TOT crowd. ChatGPT says "Some of his discussions of TRT, while emphasizing a holistic approach, have included mentions that, in specific cases, higher T doses may be needed to optimize the ratio of T to E."
When someone is not on TRT. Doctors do recommend increasing your testosterone by exercise, better diet + weight loss. Which in turn will will lower your estrogen.

But I never heard of someone increasing their dose of T to lower symptoms of e2.
 
@Cataceous You mean this doctor?

Yes. You should know him. He has posted here as "RobRoy" and previously as "J. Keith Nichols MD". He has quite an ego, and a temper that flares whenever he is questioned.
 
Yes. You should know him. He has posted here as "RobRoy" and previously as "J. Keith Nichols MD". He has quite an ego, and a temper that flares whenever he is questioned.
 
Yes. You should know him. He has posted here as "RobRoy" and previously as "J. Keith Nichols MD". He has quite an ego, and a temper that flares whenever he is questioned.
I've seen how he replies to serious questions and to be fair he is a clown as he can't handle any discussion politely and seems can't handle his ego as well. Nobody in their right set of mind would talk to other people like that esp when one is a doctor. Probably needs to lower his androgens and get a proper "treatment" instead talking like a little guy who has no idea what time it is. Just another keyboard warrior who happens to be a doctor. Not sure who can go to him after reading his menstruation posts. Smh
 
I've seen how he replies to serious questions and to be fair he is a clown as he can't handle any discussion politely and seems can't handle his ego as well. Nobody in their right set of mind would talk to other people like that esp when one is a doctor. Probably needs to lower his androgens and get a proper "treatment" instead talking like a little guy who has no idea what time it is. Just another keyboard warrior who happens to be a doctor. Not sure who can go to him after reading his menstruation posts. Smh
Apparently it does work for him. But as we all know what works for one doesn't mean it will work for the next person.
 
Your results aren’t typical, you’re an outlier.
my at 7,5mgdaily =52.5 mg week ,T.T 490 ,FT 90,E51 and Hematocrit 53......I lowered the t dose from 60mg to 52.5 and also switched to daily,hoping to lower the E and Hemat. . When i was at 60mg Week-30mgx2 Mon-Thu,the T.T was 650 and the FT 155 and E at 52 and Hemat. at 53..... The lower T.T and FT was expected but not the E&Hemat,which stayed the same,why? Wondering why..getting so confusing and tired with this adjustments.Do not not want Phleb nor AL.. Can you or anyone here has a reasonable explanation? Thanks

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my at 7,5mgdaily =52.5 mg week ,T.T 490 ,FT 90,E51 and Hematocrit 53......I lowered the t dose from 60mg to 52.5 and also switched to daily,hoping to lower the E and Hemat. . When i was at 60mg Week-30mgx2 Mon-Thu,the T.T was 650 and the FT 155 and E at 52 and Hemat. at 53..... The lower T.T and FT was expected but not the E&Hemat,which stayed the same,why? Wondering why..getting so confusing and tired with this adjustments.Do not not want Phleb nor AL.. Can you or anyone here has a reasonable explanation? Thanks
...

Unless you have some other health issue this is suggesting that your dose is still too high for you. Although having total testosterone of 500 ng/dL may not seem excessive, with your daily injections you are probably maintaining this level 24 hours a day. This is an unnatural pattern, as normally our testosterone goes down as the day progresses. The constant level could be keeping hematocrit elevated. Ideally you would test this proposition by switching to faster acting testosterone, which would allow you to reduce the dose while maintaining a robust daily peak level. Since you're already injecting daily you could add in some testosterone propionate while cutting back the enanthate. For example, you might start with 2.5 mg propionate and 3 mg of enanthate daily to see if you can reduce hematocrit without becoming hypogonadal.

More dramatic would be a switch to testosterone nasal gel. The principle is the same, and it has the added advantage of allowing natural HPTA function.

Do not let anyone tell you that some arbitrary amount of testosterone is already too low. The pharmacokinetics (how serum testosterone changes over time) must be taken into account. I'm currently taking 3 mg of testosterone per day—equivalent to 30 mg of testosterone cypionate/week—in divided doses and doing better than at any higher doses. The key is that it is fast acting, leading to healthy peaks and low troughs. This intake is similar to what men using Natesto attain.

By the way, do you have a measurement for SHBG? It would be useful for estimating free testosterone. You didn't specify which test gave your free T measurements. Unless it was equilibrium dialysis it may not be trustworthy. Reference ranges and units are also needed.
 
my at 7,5mgdaily =52.5 mg week ,T.T 490 ,FT 90,E51 and Hematocrit 53......I lowered the t dose from 60mg to 52.5 and also switched to daily,hoping to lower the E and Hemat. . When i was at 60mg Week-30mgx2 Mon-Thu,the T.T was 650 and the FT 155 and E at 52 and Hemat. at 53..... The lower T.T and FT was expected but not the E&Hemat,which stayed the same,why? Wondering why..getting so confusing and tired with this adjustments.Do not not want Phleb nor AL.. Can you or anyone here has a reasonable explanation? Thanks

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Are you sure you tested both at trough?
 
my at 7,5mgdaily =52.5 mg week ,T.T 490 ,FT 90,E51 and Hematocrit 53......I lowered the t dose from 60mg to 52.5 and also switched to daily,hoping to lower the E and Hemat. . When i was at 60mg Week-30mgx2 Mon-Thu,the T.T was 650 and the FT 155 and E at 52 and Hemat. at 53..... The lower T.T and FT was expected but not the E&Hemat,which stayed the same,why? Wondering why..getting so confusing and tired with this adjustments.Do not not want Phleb nor AL.. Can you or anyone here has a reasonable explanation? Thanks

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are you on HCG or any other supplement? That E2 seems high compared to TT.
 

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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

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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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