Does TRT cause anxiety? What the evidence actually shows

What did @therestoreclinic actually say?

The creator argues that anxiety is one of the "principle most common adverse effects" of testosterone replacement therapy, and that it usually happens when the protocol is too aggressive. They also claim that adding an aromatase inhibitor like anastrozole on top of high-dose testosterone makes things worse. Their specific example: 200mg of testosterone cypionate weekly plus 1mg anastrozole one to two times per week, which they call a "very generic cookie cutter protocol" that makes people "feel like crap."

That's a fairly specific, clinically-grounded claim. It's not fear-mongering, and it's not promoting a product. The creator is essentially saying: bad protocols cause bad outcomes. That's worth examining seriously.

Does the science back this up?

Mostly, yes. The relationship between supraphysiologic testosterone and anxiety is real, though it's more complicated than the video suggests. Estrogen dysregulation is likely the bigger driver than testosterone itself.

When testosterone doses are high, aromatization increases. Estrogen spikes. Then, if an aromatase inhibitor is added aggressively, estrogen can crash. Low estradiol in men is independently associated with anxiety, irritability, and mood disturbance. A 2015 study by Finkelstein et al. in the New England Journal of Medicine demonstrated that estrogen, not testosterone alone, plays a significant role in men's mood and body composition. Driving estradiol too low with anastrozole can cause the same emotional symptoms people are trying to escape.

The 200mg weekly dose the creator mentions is above the typical physiologic replacement range. Most clinical guidelines, including those from the American Urological Association, suggest doses that restore testosterone to mid-normal physiologic levels, not supraphysiologic ones. Starting at 200mg weekly is aggressive for most men.

What did they get wrong (or right)?

They got the core mechanism mostly right. Aggressive testosterone dosing combined with over-suppression of estrogen is a real clinical problem, and anxiety is a documented consequence. Credit where it's due.

But the framing has a gap. The creator implies anxiety is primarily a dose problem. It's not that simple. Anxiety after starting TRT can also reflect underlying HPA axis changes, sleep disruption from elevated hematocrit, or pre-existing mood disorders that testosterone doesn't fix. A 2021 review by Golds et al. in Therapeutic Advances in Endocrinology and Metabolism found that mood outcomes on TRT are highly variable and depend on baseline hypogonadism severity, not just protocol aggressiveness.

Also worth flagging: calling 200mg weekly plus anastrozole 1mg one to two times weekly a "cookie cutter protocol" is accurate in the sense that it's common in certain men's health clinic circles. But characterizing it as universally bad oversimplifies things. Some men may legitimately need different doses. The problem isn't the number. It's using a fixed protocol without monitoring.

What should you actually know?

If you're on TRT and experiencing anxiety, the first question your provider should ask is: what are your estradiol levels? Not just your total testosterone. Anxiety in TRT patients is frequently linked to estrogen being either too high or too low, and anastrozole misuse is a documented contributor.

Standard of care involves regular labs, dose titration based on symptoms and bloodwork, and not defaulting to an aromatase inhibitor unless estradiol is genuinely elevated and symptomatic. The Endocrine Society's 2018 clinical practice guidelines on male hypogonadism specifically caution against routine use of estrogen-blocking agents in TRT patients without clear indication.

The creator's underlying message, that rigid, unmonitored protocols cause harm, is defensible. But the solution isn't a different fixed protocol. It's individualized care with lab monitoring and dose adjustment over time.