TRT and high blood pressure: what actually works vs. bro science

What did @kmartfit actually say?

The creator laid out two root causes of high blood pressure on TRT: a testosterone dose that is "a little bit too high" and genetic predisposition. For the genetic angle, they offered two fixes: beetroot powder as a "nitric oxide booster" and staying properly hydrated. They also told viewers to "speak with your doctor" about dose. That last part matters, and we'll come back to it.

The video is short, punchy, and aimed at the TRT community. It is not trying to be a clinical lecture. But short and punchy can still be wrong, and some of what was said here deserves a harder look than 30,000 TikTok viewers probably gave it.

Does the science back this up?

Partially, yes. Testosterone can raise blood pressure, and dose is a legitimate factor. A 2021 meta-analysis by Corona et al. in the Journal of Sexual Medicine found that TRT was associated with modest increases in systolic blood pressure, particularly at supraphysiologic levels. So "your dose could be too high" is not wrong.

On beetroot powder: the nitric oxide pathway is real. Dietary nitrates in beetroot are converted to nitric oxide, which causes vasodilation. A 2013 randomized trial by Kapil et al. in Hypertension showed that inorganic nitrate from beetroot juice significantly reduced systolic blood pressure in hypertensive patients. That is legitimate evidence, not broscience.

Hydration is more complicated. Dehydration can raise blood pressure short-term by triggering vasopressin release and reducing plasma volume. But the relationship is not linear, and simply drinking more water is not a proven antihypertensive strategy in people who are already adequately hydrated. The evidence for hydration as a meaningful blood pressure reducer in normovolemic individuals is thin.

What did they get wrong (or right)?

The beetroot claim is actually better supported than most supplement claims you see on TikTok. Credit where it is due. The nitrate-to-nitrite-to-nitric-oxide conversion is well-documented, and the vasodilatory effect is real enough that some researchers have explored it as a functional food intervention.

The hydration claim is oversold. Saying hydration is "a massive factor in reducing your blood pressure" implies a cause-and-effect relationship that the evidence does not fully support for most adults on TRT. Chronic dehydration is a problem, but if you are already drinking enough water, adding more is unlikely to meaningfully move your blood pressure numbers.

The bigger issue is the framing of "genetically predisposed" as a separate category from dose-related hypertension. In reality, these interact. Someone with a family history of hypertension may have a lower threshold for TRT-induced blood pressure elevation. Presenting them as two clean buckets oversimplifies the clinical picture in a way that could lead someone to assume their dose is fine when it is not.

Also missing entirely: hematocrit. TRT raises red blood cell production, which increases blood viscosity, which raises blood pressure. This is one of the most clinically important mechanisms and the creator did not mention it once.

What should you actually know?

If you are on TRT and your blood pressure is rising, hematocrit elevation is the first thing your doctor should check, not the last. A 2019 review by Nguyen et al. in Translational Andrology and Urology identified erythrocytosis as the most common adverse effect of TRT and a direct contributor to cardiovascular risk. Donation of blood or dose reduction are the typical clinical responses.

Beetroot powder is a reasonable adjunct, not a treatment. If your blood pressure is genuinely elevated, a supplement that produces modest vasodilation does not replace medical evaluation. It might help at the margins. It will not compensate for a dose that is too high or a hematocrit that is climbing.

The advice to speak with your doctor is the most important thing in this video, and it got the least airtime. Blood pressure on TRT is a safety issue, not a lifestyle optimization issue. A 2020 analysis in the Journal of the American Heart Association found that testosterone use was associated with increased risk of adverse cardiovascular events in men with pre-existing hypertension. This is not something to manage with powder and water alone.

Is this video safe to follow?

Mostly, with caveats. Nothing here is dangerous on its face. Beetroot powder is low-risk. Staying hydrated is good general advice. Talking to your doctor is the right instinct. But the video skips the most important mechanism (hematocrit), overstates hydration's role, and frames a complex physiological interaction as a simple two-option checklist. Someone watching this might feel like they have a handle on the situation when they actually need blood work and a clinical conversation, not a supplement recommendation from TikTok.