What did @drbergofficial actually say?
Berg's argument is that erectile dysfunction is primarily a vascular problem driven by nitric oxide loss, and that a low-carb diet plus specific nitric oxide-boosting foods can address the root cause. He also recommends kegel exercises, citing a randomized controlled trial where they "improved erectile dysfunction in 40% of the participants." That's a fairly precise claim for a TikTok video, and it deserves a close look.
The overall framework, that ED is an early marker of vascular dysfunction, is legitimate medicine. Cardiologists have said for years that the penis is essentially a vascular stress test for the rest of the circulatory system. Berg is working from a real foundation here, even if his solutions are oversimplified.
Does the science back this up?
Partially, yes. The nitric oxide connection to erectile function is well-established. Erections depend on nitric oxide-mediated smooth muscle relaxation in penile vasculature, which is why PDE5 inhibitors like sildenafil work by prolonging NO signaling. The question is whether diet and kegels meaningfully move that needle.
On kegels: Berg's 40% figure likely references Dorey et al. (2005, BJU International), a small but legitimate RCT of 55 men with ED. After three months of pelvic floor exercises, 40% regained normal erectile function and another 35% improved. That's real data, and Berg cited it more accurately than most creators would. On low-carb and nitric oxide: the link is real but indirect. Reducing hyperglycemia does support endothelial function (Esposito et al., 2004, JAMA), but "low-carb increases nitric oxide" is a compression of a more complicated metabolic story.
Beet juice and arugula contain dietary nitrates that convert to nitric oxide via the enterosalivary pathway. There's supporting evidence for this (Lundberg et al., 2008, Nature Chemical Biology), though most studies use concentrated doses, not casual dietary amounts.
What did they get wrong (or right)?
Berg got more right than wrong here, which is worth saying plainly. The vascular framing of ED is correct. The kegel citation is real and reasonably accurate. Dietary nitrates from arugula and beet juice do have mechanistic support.
Where he oversimplifies: "just the fact that you lower carbs will increase nitric oxide" treats a complex endothelial pathway as a simple lever. Low-carb diets improve insulin sensitivity and reduce oxidative stress, which can support eNOS (endothelial nitric oxide synthase) activity, but the effect size is modest and population-dependent. Men with severe arterial disease or hypogonadism are not going to reverse ED by eating arugula salad.
He also frames this as a strategy to "reverse" ED, which implies a completeness the evidence doesn't support. The Dorey study showed improvement in some men, not reversal in most. Calling it reversible through lifestyle alone, without mentioning that ED can signal serious cardiovascular risk requiring medical evaluation, is a real gap in this content.
What should you actually know?
ED is worth taking seriously as a health signal, not just a lifestyle inconvenience. Research by Inman et al. (2009, Mayo Clinic Proceedings) found men with ED had a significantly higher risk of subsequent cardiovascular events. If you have ED, the most important first step is a clinical evaluation, including blood pressure, lipid panel, testosterone, and blood glucose screening, not just dietary changes.
That said, lifestyle interventions are not nothing. A 2011 meta-analysis by Esposito et al. (Journal of Sexual Medicine) found that weight loss and exercise improved erectile function scores in obese men with ED. Pelvic floor exercises have the strongest non-pharmacological evidence base for ED specifically. If you're going to try something lifestyle-based, kegels are actually one of the better-supported options available.
The problem with this video is not that it's wrong. It's that it positions itself as a complete answer to a condition that sometimes signals something that needs a doctor, not a TikTok.