What did @conorduffyfitness actually say?
Conor's video is actually a rebuttal. Another creator (@crazydiago) relabeled Conor's natural fat loss transformation video to imply he was on testosterone replacement therapy. Conor pushed back hard, saying "I am not on gear" and calling out the 35,000 people who saw the misleading repost in under an hour.
He also made a passing comment worth scrutinizing: he said anyone on "actual TRT and not bullshit fucking bodybuilding TRT" would be taking "anywhere from 75 to 200 migs a week." That's a specific clinical claim, and it deserves a closer look. Then he closed with a pitch for one-to-one coaching, saying results "so good you're getting accusations" are achievable for clients.
Does the science back this up?
His dosage range is roughly accurate for clinical TRT, though the floor is a bit low. Real hypogonadism treatment typically falls between 100 and 200mg of testosterone cypionate or enanthate every one to two weeks, or 50 to 100mg weekly. The 75mg lower bound he cited is used but sits at the conservative edge of prescribing practice.
On the fat loss side: losing 10kg in 7 weeks is aggressive. That works out to roughly 1.4kg per week, which exceeds the commonly cited guideline of 0.5 to 1kg per week for sustainable loss. Research from Garthe et al. (2011, International Journal of Sport Nutrition and Exercise Metabolism) found that slower weight loss in athletes preserved more lean mass than rapid cuts. Whether Conor lost mostly fat or a mix of fat and muscle matters, and he doesn't address it.
There is also real evidence that supraphysiologic testosterone, which is what "bodybuilding TRT" actually means, does accelerate fat loss and muscle gain simultaneously. Bhasin et al. (1996, New England Journal of Medicine) showed dose-dependent increases in muscle mass and reductions in fat mass with testosterone, even without exercise.
What did they get wrong (or right)?
Conor gets credit for calling out the misrepresentation clearly and quickly. That's a legitimate grievance. Someone stealing his content and relabeling it to falsely imply drug use is a real problem on short-form video platforms, and he named it.
His dosage framing is mostly right, but calling anything outside clinical ranges "bullshit bodybuilding TRT" without explaining what that actually means does a disservice to viewers who don't know the difference. Supraphysiologic testosterone use is not TRT. It's androgen doping. The distinction matters clinically and legally.
The coaching pitch at the end is worth flagging. Implying that 10kg in 7 weeks is a typical or replicable outcome for coaching clients without disclosing individual variation, starting body composition, or dietary controls is misleading by omission. That's not a small asterisk. The American College of Sports Medicine recommends framing weight loss outcomes with significant caveats about individual response.
What should you actually know?
If you're seeing a TikTok body transformation and wondering whether it's natural, the honest answer is: you usually cannot tell. Conor's rate of loss, 10kg in 7 weeks, sits at the outer edge of what's achievable naturally for someone with a meaningful caloric deficit and high starting body fat. It's not impossible without drugs. It's also not typical.
Actual TRT, prescribed for diagnosed hypogonadism with serum testosterone below roughly 300 ng/dL, does modestly improve body composition. A meta-analysis by Isidori et al. (2005, Clinical Endocrinology) found TRT reduced fat mass by about 1.6kg on average in hypogonadal men. That's meaningful, but it's not a 10kg transformation driver on its own.
If a creator is selling coaching based on their personal transformation results, ask what their starting point was, what their diet looked like, and whether those outcomes have been replicated in paying clients. Transformation videos are marketing. They are not clinical evidence.
The bottom line on this video
Conor was wronged by a content thief, and he responded reasonably. His dosage comment was broadly accurate. But a 10kg in 7 weeks coaching promise, without context, is the kind of claim that sets people up for disappointment or, worse, pressure to find shortcuts. The misrepresentation he's fighting in this video is exactly the kind of environment that makes vague transformation promises dangerous.