239 Health claim verifications avg. score 4.4/10 69 rated true or mostly true 169 rated false or misleading
“Vaping causes cancer in humans.”
Current evidence does not support the definitive claim that vaping causes cancer in humans. Human studies showing elevated cancer risk involve dual users who also smoke combustible cigarettes — a known carcinogen — making it impossible to isolate vaping as the independent cause. Multiple systematic reviews find no significant cancer risk in exclusive never-smoker vapers. While biomarker evidence of DNA damage and a recent review calling vaping "likely" carcinogenic suggest biological plausibility, no authoritative body has confirmed a definitive causal link for vaping alone.
“Drinking 3 to 5 cups of coffee per day reduces the risk of cardiovascular disease.”
Large meta-analyses of prospective cohort studies consistently find that drinking 3–5 cups of coffee per day is associated with the lowest observed cardiovascular disease risk — but the claim's causal framing ("reduces the risk") overstates what observational evidence can establish. Residual confounding, variation in cup size and caffeine content, individual genetic differences, and inconsistent findings for specific endpoints like coronary heart disease all represent material omissions. The direction of the evidence is favorable, but the certainty implied by the claim is not warranted.
“The use of antibacterial soaps contributes to the development of antibiotic resistance.”
Strong mechanistic and regulatory evidence supports that antibacterial soaps — particularly those containing triclosan — contribute to antibiotic resistance development. Multiple peer-reviewed studies show triclosan exposure selects for bacteria with cross-resistance to clinical antibiotics, and the FDA banned triclosan from consumer soaps in 2016 partly on these grounds. However, the claim overgeneralizes: triclosan-based soaps are now largely off the market, the evidence gap between laboratory findings and real-world population-level causation persists, and not all antibacterial soap ingredients carry the same risk profile.
“Improving sleep quality significantly reduces anxiety and psychological stress levels.”
Strong evidence from multiple peer-reviewed studies and meta-analyses confirms that improving sleep quality significantly reduces anxiety symptoms. However, the claim overstates the case for psychological stress: a 2025 meta-analysis found no significant difference in stress levels compared to standard care when sleep was improved. The sleep-anxiety relationship is also bidirectional, meaning reduced anxiety can itself improve sleep. The claim is well-grounded for anxiety but less conclusively supported for stress reduction specifically.
“Ashwagandha supplementation effectively reduces stress and lowers cortisol levels in humans.”
Multiple systematic reviews and meta-analyses — including a 2025 BJPsych Open analysis of 15 studies — consistently show ashwagandha reduces perceived stress and cortisol levels compared to placebo. However, these benefits are best demonstrated in chronically stressed adults, not the general population. Evidence certainty is rated "low" with high heterogeneity across trials, at least one RCT found no cortisol effect in a specific subgroup, and long-term safety data remain limited. The claim is substantively supported but overstates universality.
“Adrenal fatigue syndrome is a recognized medical condition in which overworked adrenal glands produce insufficient cortisol.”
Every major medical authority — including the Endocrine Society, NIDDK, Mayo Clinic, and Cleveland Clinic — explicitly states that "adrenal fatigue" is not a recognized medical diagnosis and lacks scientific proof. A 2016 systematic review in a peer-reviewed journal found no substantiation for the concept. While adrenal insufficiency (e.g., Addison's disease) is a real condition involving low cortisol, it has distinct causes unrelated to the "overworked adrenals" mechanism described in the claim. The only sources supporting the claim come from low-authority integrative or commercial health websites.
“Pregnant women should avoid eating crab due to health risks.”
This claim is false. Major health authorities including the EPA, FDA, and NHS do not advise pregnant women to avoid crab. The EPA-FDA explicitly lists crab as a "Best Choice" seafood for pregnant women due to its low mercury content. The NHS caution applies only to raw or undercooked shellfish, not properly cooked crab. Guidance recommends eating cooked crab within standard seafood serving limits — not avoiding it entirely. A blanket avoidance recommendation is unsupported and could deprive mothers and babies of beneficial nutrients.
“Consuming caffeine while cortisol levels are elevated reduces the stimulant effect of caffeine compared to when cortisol levels are not elevated.”
The available evidence does not support this claim as stated. Studies show that habitual caffeine use can blunt caffeine's ability to further raise cortisol levels — but this is a different outcome from caffeine's stimulant effect on alertness, which is primarily mediated through adenosine receptor blockade. No source in the evidence pool directly measures whether pre-existing elevated cortisol reduces caffeine's wakefulness or alertness properties. The claim conflates two distinct physiological pathways, creating a materially misleading impression.
“Devendra Fadnavis and Salman Khan jointly inaugurated a room named 'Gram Medical Assistance Fund' at Mantralaya in Mumbai in April 2026 to provide financial aid of up to 2.5 million INR for needy patients across all diseases.”
This claim is fabricated misinformation recycling a real 2016 event with false details. The Maharashtra Chief Minister's Office explicitly labeled the viral "Gram Medical Assistance Fund" claim as fake news. No credible official record, photograph, or contemporaneous report of an April 2026 inauguration exists. The actual event was a 2016 Rural Medical Aid Fund launch by Fadnavis and Salman Khan offering up to Rs. 2 lakh — not Rs. 25 lakh — making the claimed date, fund name, and aid amount all false.
“Squats result in greater vastii hypertrophy compared to leg extensions.”
The best evidence shows squats produced greater hypertrophy in the vastus lateralis (especially at a distal site) compared with leg extensions, while leg extensions favored rectus femoris. But this does not demonstrate greater hypertrophy across the whole “vastii” group (including vastus medialis/intermedius). The claim overstates the evidence.
“Cinnamon can cure knee pain within 24 hours.”
No credible clinical evidence supports the claim that cinnamon can cure knee pain within 24 hours. The best peer-reviewed studies show only modest improvements in joint pain after 8 weeks of consistent supplementation, and no study uses the word "cure." The 24-hour timeframe has zero direct clinical support for knee pain. Presenting cinnamon as a rapid cure risks dangerously delaying proper medical treatment for serious knee conditions.
“Sugars produced by gut bacteria trigger immune responses that cause amyotrophic lateral sclerosis (ALS).”
The evidence does not support the assertion that bacterial sugars cause ALS. The only source linking bacterial sugars to immune-mediated cell death is a university press release describing preliminary findings—not a peer-reviewed causal study. Peer-reviewed sources describe broad associations between gut dysbiosis and neuroinflammation but do not identify bacterial sugars as a specific causal trigger. Multiple sources explicitly state that clinical causality has not been established, and ALS remains a multifactorial disease with genetic and environmental contributors.
“The Centers for Disease Control and Prevention paused diagnostic testing for rabies in 2026.”
Multiple independent, high-authority news outlets — including CIDRAP, CBS News, The Guardian, and POLITICO Pro — confirm that the CDC listed rabies diagnostic testing as "temporarily paused" on its website beginning around March 30, 2026, amid staffing shortages and agency restructuring. The word "paused" in the claim accurately reflects the temporary nature of the halt. State public health labs retained some testing capacity during this period, but the CDC's own diagnostic services were indeed suspended.
“High-dose turmeric supplements exceeding 2500 mg daily can cause liver damage in humans.”
Turmeric supplements have been linked to rare liver injury in humans, but the specific 2,500 mg threshold in this claim is unsupported by the evidence. Regulatory bodies including Health Canada and the UK COT characterize turmeric-related liver injury as idiosyncratic and genetically mediated (linked to HLA-B*35:01), not as a predictable dose-dependent effect above any particular milligram threshold. Most individuals tolerate doses of 6,000–12,000 mg daily without harm, while susceptible individuals may experience injury at lower doses.
“BPC-157 peptide supplements sold online have been found to contain lead and other contaminants.”
The evidence supports general contamination concerns for unregulated online supplements but does not substantiate the specific claim that BPC-157 products have been analytically confirmed to contain lead. The most authoritative sources use conditional language like "potential contamination" and "may be tainted," while the only BPC-157-specific testing dataset (469 samples across 69 vendors) reports purity variability but no lead detections. Lead contamination data cited in the evidence pertains to protein powders and dietary supplements broadly, not BPC-157 specifically.
“Oral collagen supplements improve skin elasticity in humans.”
Multiple systematic reviews and meta-analyses — including an umbrella review of 113 trials and nearly 8,000 participants — consistently find that oral collagen supplementation produces statistically significant improvements in skin elasticity. However, the effects are generally modest, build over weeks, and vary by product type, dose, and study quality. Some analyses report that positive results shrink or disappear when restricted to higher-quality, independently funded trials, meaning the unqualified claim overstates the reliability and magnitude of the benefit.
“Super agers maintain cognitive function equivalent to individuals who are 20 to 30 years younger than themselves.”
The claim aligns with the dominant scientific definition of "SuperAgers" — adults 80 and older whose episodic memory performance on standardized tests matches that of people 20 to 30 years younger. Multiple peer-reviewed studies and the Northwestern SuperAging Program confirm this benchmark. However, the phrase "cognitive function" is broader than what the research actually measures; the demonstrated equivalence is primarily in episodic memory (delayed word recall), not across all cognitive domains such as processing speed or executive function.
“There is a correlation between the amount of body hair a man has and the length of his penis.”
No credible study in the available evidence measures both body hair amount and penile length in adult men, and no established correlation between the two has been demonstrated. While both traits are influenced by androgens during development, a shared hormonal pathway does not guarantee a detectable population-level correlation — adult testosterone levels are not correlated with adult penile length, and body hair is shaped by independent genetic, ethnic, and receptor-sensitivity factors. The claim lacks empirical support.
“Practicing combat sports has a stronger effect on maintaining or increasing testosterone levels compared to most other sports.”
The best available evidence directly contradicts this claim. A meta-analysis published in a high-authority NIH-indexed journal found no statistically significant difference in testosterone response between combat sports and other sports. Multiple studies show testosterone can actually decrease after combat sports activity, and basal testosterone levels in martial artists are statistically indistinguishable from those of other athletes. Resistance training and HIIT produce comparable or robust testosterone responses, undermining any claim of combat sports superiority.
“Giving water to infants under 6 months of age is unsafe and unnecessary.”
The global medical consensus strongly supports this claim for routine care of healthy infants. The WHO, AAP, and multiple independent clinical sources confirm that water poses real physiological risks — including hyponatremia, water intoxication, and nutritional displacement — and is unnecessary when infants receive adequate breast milk or formula. The only caveat is that the claim's absolute framing omits a narrow exception: water may be medically indicated in specific clinical scenarios such as severe dehydration, administered under professional supervision.