551 Health claim verifications avg. score 5.1/10 219 rated (mostly) true 266 rated (mostly) false
“As of April 3, 2026, H5N1 avian influenza has achieved sustained human-to-human transmission.”
Every major public health authority contradicts this claim. The CDC (March 2026), WHO (through March 27, 2026), and ECDC (February 2026) all explicitly state that no sustained human-to-human transmission of H5N1 has been detected. The only counterarguments rest on a single unresolved case and general surveillance uncertainty — neither of which constitutes evidence that sustained transmission chains exist. The claim asserts as fact something the best available evidence directly refutes.
“Vitamin D deficiency is widely overdiagnosed in clinical practice.”
Strong evidence shows vitamin D testing is widely overused — with studies finding 57–77% of tests lack clinical justification — but the claim conflates overtesting with overdiagnosis. Overtesting means ordering tests without guideline indications; overdiagnosis means incorrectly labeling healthy people as deficient. While contested diagnostic thresholds may inflate deficiency labels in some populations, global data also show substantial true deficiency prevalence with meaningful health associations. The unqualified assertion that deficiency is "widely overdiagnosed" overstates what the clinical literature supports.
“Taurine supplementation supports mood and emotional health in humans.”
The evidence does not yet support this broad claim. While taurine has a plausible biological mechanism (acting on GABA and glycine receptors) and consistent animal-model results, the only notable human clinical evidence comes from a single small trial in first-episode psychosis patients using taurine as an add-on to standard treatment — not as a standalone supplement for general mood support. Authoritative sources, including ColumbiaDoctors, explicitly state that randomized clinical trials are still needed to determine whether taurine supplements improve health in humans.
“AI-generated deepfake X-ray images are sufficiently realistic to cause radiologists to make incorrect diagnoses.”
The evidence confirms that AI-generated deepfake X-rays can deceive radiologists — with only 41% spontaneously detecting fakes in a major 2026 study — but it does not demonstrate that this deception causes incorrect diagnoses. The same study found comparable diagnostic accuracy on real versus synthetic images (91.3% vs. 92.4%), undermining the claim's causal assertion. The claim conflates "hard to detect" with "causes misdiagnosis," an inferential leap the available research does not support.
“Variants in the MTHFR gene are associated with increased inflammation in humans.”
The relationship between MTHFR variants and inflammation is real but far more nuanced than the claim suggests. Peer-reviewed evidence confirms that the C677T variant can associate with higher inflammatory markers (e.g., elevated NLR, CRP), but the other common variant—A1298C—trends in the opposite direction in the same study design. Treating "MTHFR variants" as a uniform class linked to increased inflammation overgeneralizes the evidence and omits variant-specific and population-specific differences that materially change the picture.
“The carnivore diet (an all-animal-product diet excluding plant foods) is beneficial to human health.”
The weight of credible scientific and medical evidence does not support the claim that an all-meat carnivore diet is beneficial to human health. While some short-term improvements in select biomarkers (weight loss, HbA1c) have been observed in self-reported surveys, the most authoritative sources—including a 2026 scoping review, Harvard, the British Heart Foundation, and Cleveland Clinic—consistently flag substantial risks: nutrient deficiencies, elevated LDL cholesterol, loss of protective fiber and phytochemicals, and plausible cardiovascular harm. No major medical body recommends this diet.
“Atrial fibrillation reduces glymphatic flow in the brain, impairing the clearance of waste metabolites.”
Emerging evidence suggests a link between atrial fibrillation and reduced glymphatic activity, but the claim presents this as an established causal mechanism when it remains a contested hypothesis. The strongest experimental data comes from cardiac arrest models in mice—not AF—and the only dedicated clinical study involved just 13 patients. Most peer-reviewed AF literature attributes cognitive decline to hypoperfusion, microembolism, and inflammation rather than glymphatic impairment specifically, and the underlying premise that vascular pulsation drives glymphatic flow is itself disputed.
“Mitochondrial dysfunction is the primary cause of age-related decline in skeletal muscle.”
The scientific literature does not support singling out mitochondrial dysfunction as "the primary cause" of age-related skeletal muscle decline. While multiple peer-reviewed reviews describe mitochondrial dysfunction as an important contributor and sometimes hypothesize it as an upstream initiator, the broader evidence base consistently characterizes sarcopenia as multifactorial—driven by denervation, neuromuscular junction failure, chronic inflammation, hormonal changes, and anabolic resistance alongside mitochondrial impairment. At least one high-authority source explicitly identifies denervation, not mitochondrial dysfunction, as the dominant driver in very old muscle.
“BPC-157 and TB-500 peptide supplements are FDA-approved and have been scientifically proven to heal injuries and slow aging in humans.”
This claim is false on both of its core assertions. Neither BPC-157 nor TB-500 holds FDA approval for any therapeutic indication — the 2026 Category 1 reclassification permits compounding under physician oversight but is explicitly not FDA approval. The "scientifically proven" claim is equally unsupported: human evidence consists only of small, uncontrolled pilot studies, with no large-scale randomized controlled trials, and there is no human clinical evidence for anti-aging effects.
“Cold weather causes approximately 40,000 additional cardiovascular deaths each year in the United States.”
Cold weather is well-established as a risk factor for cardiovascular death, and the general direction of this claim is supported by multiple credible sources. However, the specific figure of "approximately 40,000" traces to a single conference presentation (ACC.26, March 2026) that has not yet been peer-reviewed or independently replicated. The claim also omits that this is a statistical model estimate — not a direct cause-of-death count — and that confounding factors like respiratory infections, holiday behaviors, and socioeconomic conditions may contribute to winter cardiovascular mortality spikes.
“Vivid dreams cause people to perceive their sleep as deeper and more restorative, even when objective brain activity measurements indicate they were in a lighter sleep stage.”
A new peer-reviewed study finds people who have vivid, immersive dreams often rate their sleep as unusually deep and restorative, even while EEG shows they were in lighter REM-like stages. Earlier research rarely examined this link and offers some null results, so the effect is plausible but not yet firmly established.
“In controlled tests, fewer than half of experienced radiologists were able to reliably detect AI-generated deepfake X-ray images.”
The claim conflates two different study conditions. When radiologists were not told deepfakes were present, only 41% spontaneously flagged something unusual — but this measures unprompted suspicion, not detection accuracy. When explicitly told synthetic images were included (the standard controlled detection task), radiologists achieved 75% mean accuracy, well above the "fewer than half" threshold. The claim cherry-picks the lower figure and mischaracterizes it as a controlled detection result.
“Corticosteroid injections are more effective than physiotherapy or rehabilitation in treating chronic tendon injuries.”
This claim is not supported by the evidence. Multiple systematic reviews and meta-analyses consistently show that corticosteroid injections provide only short-term pain relief (weeks) for tendon injuries, while physiotherapy produces equal or superior outcomes at 3–12+ months. For chronic tendon injuries specifically, a PMC-NIH review found "no good evidence" supporting corticosteroid use, and a 2025 PubMed meta-analysis confirmed injections are not superior to physical therapy beyond the short term. Clinical guidelines treat injections as adjuncts to rehabilitation, not replacements.
“Corticosteroid injections provide effective long-term relief for musculoskeletal injuries such as tendinopathy and rotator cuff tears.”
This claim is not supported by current medical evidence. Multiple recent systematic reviews and meta-analyses (2022–2025) consistently show that corticosteroid injections provide short-term pain relief — typically lasting weeks to a few months — but do not deliver effective long-term relief for tendinopathy or rotator cuff injuries. At intermediate and long-term follow-up, corticosteroids perform no better than placebo or physical therapy, and may worsen structural integrity in some cases. The only supporting evidence is a 2005 meta-analysis now superseded by stronger, more recent research.
“Social media use is as addictive as controlled substances such as cocaine or heroin, producing comparable neurological and behavioral dependency.”
Social media and controlled substances like cocaine or heroin share some overlapping dopaminergic pathways and reward-circuit activation, but the claim that they produce "comparable" addiction overstates the evidence. Peer-reviewed research consistently describes "similarities" and "overlap" — not equivalence. Cocaine and heroin directly hijack neurotransmitter systems through pharmacological mechanisms fundamentally different from social media's behavioral reinforcement. The American Academy of Pediatrics explicitly calls this comparison "not accurate," and the scientific consensus classifies social media overuse as a behavioral addiction, categorically distinct from substance dependence.
“Hormonal contraception, including birth control pills and hormonal IUDs, increases the risk of idiopathic intracranial hypertension.”
The best available evidence does not support this claim. A comprehensive meta-analysis published in Neurology in March 2026, along with earlier population-based case-control and large cohort studies, found no significant association between hormonal contraception — including birth control pills and hormonal IUDs — and idiopathic intracranial hypertension. Clinical guidance from neuro-ophthalmology specialists explicitly states there is no convincing causal evidence. The signals cited in support come from weaker study designs or apply only to specific products, not the class as a whole.
“Anktiva (nogapendekin alfa inbakicept) is approved and clinically effective for treating, curing, or preventing all types of cancer, not solely bladder cancer.”
Anktiva (nogapendekin alfa inbakicept) is approved only for BCG-unresponsive non-muscle-invasive bladder cancer with carcinoma in situ, as confirmed by the FDA, EMA, and all major clinical references. It is not approved for any other cancer type. While early-phase trials have explored its use in other malignancies, no regulatory body has recognized it as effective for treating, curing, or preventing "all types of cancer." The claim dramatically overstates both the drug's approved scope and its demonstrated efficacy.
“Consuming carbohydrates in the evening has a calming effect on the body.”
The claim captures a partial biochemical truth — carbohydrates can promote tryptophan uptake and serotonin production — but the unqualified statement that evening carbs "have a calming effect" is misleading. Peer-reviewed evidence shows outcomes depend critically on carbohydrate type, quality, and quantity. High-glycemic or large carbohydrate meals before bed are associated with sleep fragmentation, melatonin suppression, and blood sugar disruption. Only high-quality, low-glycemic carbohydrates in moderate amounts show associations with improved sleep and reduced anxiety, and even then, the evidence is mixed on evening-specific timing.
“Dietary supplements containing undisclosed pharmaceutical drugs — including steroids, thyroid hormones, and amphetamine-like stimulants — have been sold to consumers for years with limited regulatory consequence due to insufficient FDA enforcement capacity.”
The claim is substantially accurate. Peer-reviewed research documents over 1,000 dietary supplements adulterated with undisclosed pharmaceuticals — including synthetic steroids and stimulants — sold from 2007 through 2021, with some products remaining on shelves years after FDA warnings. However, the specific inclusion of "thyroid hormones" as a central adulterant pattern is not well-supported by the evidence. Additionally, the enforcement gap stems primarily from DSHEA's statutory design (classifying supplements as foods), not purely from insufficient FDA capacity — a meaningful distinction the claim obscures.
“Collagen supplements in the United States are largely unregulated by the Food and Drug Administration due to the Dietary Supplement Health and Education Act of 1994.”
The claim is substantially accurate. DSHEA (1994) does exempt collagen supplements from FDA premarket approval and shifts the burden of proving unsafety to the FDA, which multiple peer-reviewed and medical sources confirm. However, "largely unregulated" overstates the situation: the FDA retains meaningful post-market authority including cGMP manufacturing standards, labeling enforcement, adulteration removal powers, and premarket safety review for new dietary ingredients. A more precise framing would be "largely exempt from premarket approval requirements" rather than "largely unregulated."