Dr. Mark Gordon on the Joe Rogan Experience #2262, fact-checked

What the evidence shows: PQQ (pyrroloquinoline quinone) and CoQ10 (coenzyme Q10) are chemically distinct compounds, not the same family: PQQ is a water-soluble, redox-cycling orthoquinone, whereas CoQ10 is a fat-soluble electron carrier, so calling PQQ a form or sister of CoQ10 is inaccurate. The 100 to 1,000 times figure is real but describes PQQ's efficiency in redox-cycling assays compared with other enediols such as ascorbic acid (vitamin C), not a comparison with CoQ10; peer-reviewed literature states PQQ can be 100 to 1,000 times more efficient in redox cycling than enediols like ascorbic acid and menadione. On the neurodegenerative claim, mitochondrial dysfunction is an active therapeutic target, but reviews caution that translating mitochondrial-targeted therapies into effective treatments remains a significant challenge, that curative treatments remain elusive, and that agents like CoQ10 yield only modest benefits in clinical trials, with no such therapy shown to reverse neurodegenerative disease in humans. The potency number is thus attached to the wrong comparator and the reversal claim overstates the current evidence.

What the evidence shows: Quercetin is described in the pharmacology literature as a zinc ionophore that mediates zinc influx across the plasma membrane, where zinc can inhibit viral RNA-dependent RNA polymerase, so the proposed mechanism against SARS-CoV-2 has a real basis. However, that support is confined to cell-culture and computational studies, and reviews note that quercetin-plus-zinc combination therapy for COVID-19 was only registered for clinical trials with no human efficacy data presented. Quercetin has shown antiviral activity against influenza A and B and against rhinovirus, but again mainly in vitro and in animal models rather than in controlled human trials. Gordon states the effect as an established fact across a broad list of viruses, which overstates evidence that remains preclinical and does not demonstrate that swallowing quercetin plus zinc shuts down these infections in people.

What the evidence shows: The figure is well supported: zinc is required for the catalytic, structural, or regulatory activity of more than 300 enzymes across all six enzyme classes, and the NIH Office of Dietary Supplements describes zinc as required for the catalytic activity of hundreds of enzymes. The Alzheimer's link is also grounded in real biochemistry: the principal alpha-secretase, ADAM10, is a zinc-dependent metalloprotease that cleaves the amyloid precursor protein within the beta amyloid sequence, thereby precluding generation of the neurotoxic Abeta peptide. However, calling zinc simply anti-Alzheimer's oversimplifies the science, because zinc dyshomeostasis is implicated in Alzheimer's disease in both directions and zinc ions can also directly promote Abeta aggregation, so the net effect is not a clean protective one. Overall the two factual anchors (about 300 processes, and a zinc-dependent enzyme in the amyloid pathway) are accurate, while the causal framing is looser than the evidence supports.

What the evidence shows: The doubling and seven-day figures trace to a single 2009 mouse study (Davis et al.), which fed mice quercetin for 7 days and reported increased mitochondrial DNA and PGC-1alpha in muscle and brain, with the full text noting mtDNA roughly doubled at the higher 25 mg/kg dose. Two important qualifications are dropped in the quote: the measurement was mitochondrial DNA content, a biogenesis marker, not a direct count of mitochondria, and it was in mice, not people. A later rat study found quercetin did not stimulate mitochondrial biogenesis in skeletal muscle at all, and it notes that human studies either did not replicate this exercise-like effect or found only a weak one. Presenting a rodent-only, marker-based doubling as an established effect on human intracellular mitochondria overstates the evidence.

What the evidence shows: The claim conflates two different things. It is accurate that only a small share of Alzheimer's cases (roughly 1 to 5 percent) are caused by rare inherited autosomal dominant mutations in the APP, PSEN1, or PSEN2 genes, which mostly drive early-onset disease. It does not follow that the remaining 95 percent are non-genetic or attributable to trauma. The National Institute on Aging states that in most cases Alzheimer's does not have a single genetic cause and is instead influenced by multiple genes (notably the APOE risk gene) in combination with lifestyle and environmental factors. Peer-reviewed reviews estimate the heritability of common late-onset Alzheimer's at roughly 60 to 80 percent, so the disease is strongly genetic even though it is not caused by one deterministic mutation. Head trauma is a recognized risk factor for dementia but is not established as the cause of 95 percent of Alzheimer's cases, and no cited epidemiology supports a trauma-and-aging attribution at that level.

What the evidence shows: The 70 percent figure traces to a 2016 Nature survey of 1,576 researchers, but it measures something different from what is claimed. More than 70 percent of respondents said they had tried and failed to reproduce another scientist's experiment (rates ranged by field, from about 87 percent of chemists to 62 percent for other fields), which is a statistic about researchers' experiences, not a finding that 70 percent of all published studies cannot be reproduced. For reproducing their OWN work, the survey found more than half (roughly 50 percent), not 70 percent, of researchers had failed. The survey itself was nuanced: most respondents said they still trust the published literature, and fewer than 31 percent thought a failure to reproduce meant the original result was probably wrong. Conflating a researcher-experience survey with a blanket 70 percent study-failure rate, and attributing it to original authors, overstates and misframes the source.

What the evidence shows: This tracks the September 2024 Science magazine investigation by Charles Piller into Eliezer Masliah, then director of the neuroscience division at the National Institute on Aging. A neuroscientist and forensic image analysts assembled a roughly 300-page dossier flagging a steady stream of suspect images between 1997 and 2023 across 132 of his published papers, work that carried more than 18,000 citations. Nature's coverage confirms the same investigation, describing studies riddled with apparently falsified Western blots and micrographs of brain tissue. The NIH separately made a formal finding of research misconduct against Masliah involving reused and relabeled figure panels in two publications, and he stepped down as division director.

What the evidence shows: Both figures trace to Science magazine's September 2024 investigation of neuroscientist Eliezer Masliah, which reported that after Congress boosted Alzheimer's funding in 2016 the National Institute on Aging (NIA) tapped Masliah as a key leader of the effort and put him in charge of its Division of Neuroscience, whose budget was 2.6 billion dollars in the last fiscal year and dwarfs the rest of NIA combined. The NIH separately confirmed that Masliah directed the NIA neuroscience division and, following a misconduct investigation, was relieved of that position. Independent scientific literature reviewing the case corroborates that Masliah was an influential NIH figure whose flagged papers underpin more than 200 patents. Rogan's paraphrase of the 2.6 billion dollar Division of Neuroscience budget and Masliah's leadership role matches the reporting.

What the evidence shows: The 80 percent figure comes from an observational, self-reported survey of 88 patients at a single Mexican clinic in which 80 percent said ibogaine eliminated or drastically reduced acute withdrawal symptoms, not that they were cured of addiction. In that same study only 30 percent reported never using opioids again, and other follow-up studies found roughly 23 percent (Mexico, 30 patients) to 55 percent (New Zealand, 14 patients) abstinent at one year, none of them controlled trials. PolitiFact rated the near-identical 80 percent one-dose and 90-plus percent two-dose claim Mostly False, noting the figures appear to be anecdotal or clinic marketing data and conflate short-term withdrawal relief with long-term recovery. On the legislation, Texas HB 1802 passed in 2021 (87th Legislature), not 2022, and directed a Baylor College of Medicine study of psilocybin, MDMA and ketamine for veterans with PTSD, not ibogaine; it was an early state-funded psychedelic research measure, and dedicated ibogaine funding came later through 2025 legislation. The success rates are unsupported and the bill details are inaccurate on date and substance.

What the evidence shows: Rogan is invoking a widely cited 1994 remark by Nixon domestic-policy aide John Ehrlichman, published in Dan Baum's 2016 Harper's article and repeated on NPR, in which Ehrlichman said the Nixon White House's two enemies were black people and the anti-war left and that associating heroin with black communities and marijuana with hippies let officials disrupt those communities. That quote genuinely exists, but its reliability is contested: Ehrlichman's family and several former Nixon drug-policy officials dispute it, noting it surfaced 22 years after the interview and after his death, and suggesting he may have been being sarcastic. The framing that the 1970 law itself was passed for that purpose is imprecise. The 1970 statute (the Controlled Substances Act, Title II of the Comprehensive Drug Abuse Prevention and Control Act) was a congressional consolidation of prior federal drug laws that also fulfilled international treaty obligations and set up the drug scheduling system, and Nixon's formal war on drugs was not declared until 1971. So the underlying political-targeting claim rests on a disputed quote about the broader drug war rather than on the documented legislative intent of the 1970 Act.

What the evidence shows: The California grizzly bear (a subspecies of brown bear) survived well into the 20th century, not the 1800s. The California Secretary of State's archive states that in 1922 the last California grizzly bear was shot and killed. The National Park Service notes the last grizzly killed in the state was in 1922 near Sequoia National Park and that no grizzly bears have been sighted in California since 1924. The species was not formally declared extinct until 1953. Placing the extinction in the 1800s is off by roughly two decades.

What the evidence shows: CDC surveillance confirms the claim. As commercial pork production practices improved, human trichinellosis in the US shifted to wild game, with bear meat as the dominant identified source. In the CDC 2008 to 2012 surveillance, of cases with a known or suspected source, 67 percent were linked to nonpork products, and among those nonpork cases 41 of 45 (91 percent) were attributed to bear meat, far more than any other single source including pork. Public health analysts summarize that wild game meat, especially bear meat, has replaced pork as the leading source of Trichinella infection in the United States, and bear meat was the suspected or confirmed source in the majority of US outbreaks reported from 2016 to 2022. Black bear specifically is the species most often implicated, so Rogan's framing (few people eat it, yet it is the top identified source) is well supported.

What the evidence shows: New Jersey is well known for high localized black bear density, but the claim that it leads the nation is not supported. The New Jersey Department of Environmental Protection reports densities of as high as 2 to 3 bears per square mile in specific areas of the state's northwestern counties, which is striking given that New Jersey is the most human-dense state, but that figure applies to localized prime habitat, not the whole state. On a statewide basis, other states rank higher: Maine has roughly 25,000 bears, the largest population in the eastern United States, at an average near one bear per square mile, and Pennsylvania and Alaska also exceed New Jersey on statewide density or total numbers. Bear abundance is measured per unit of land area rather than per human resident (per capita), so the framing is imprecise, and while New Jersey does have a large and locally concentrated bear population, it is not the densest or largest per area in the country.

What the evidence shows: The northern Yellowstone elk herd did decline sharply after gray wolves were reintroduced in 1995 and 1996. The National Park Service reports the winter count was about 17,000 when reintroduction began and fell below 10,000 by 2003, roughly a 41 percent drop, then reached a low of 3,915 in early 2013 before partially recovering. A large before-after-control-impact study found elk recruitment (midwinter juvenile-to-female ratio) fell 35 percent in wolf-colonized herds and that elk numbers dropped more than 50 percent in some areas after reintroduction. The NPS and researchers attribute the decline to a combination of factors, including wolf and other carnivore predation, heavy hunter harvest of prime-age females, and drought, so wolves are a significant but not sole cause. The claim that the decline exceeded 40 percent and made tags harder to obtain is consistent with the data, though it overstates wolves as the single driver.

What the evidence shows: The most detailed San Francisco coyote diet study, led by UC Davis researcher Tali Caspi and based on DNA analysis of more than 700 scat samples collected across the city from 2019 to 2022, found domestic cats in only 4.5 percent of samples (32 detections), plus two guinea pigs, far below the 50 percent figure cited. That study analyzed scat from the general coyote population, not specifically captured problem animals, and its dominant diet items were human-linked chicken (72 percent of samples) and natural prey such as pocket gophers (57 percent). Even studies in regions with much higher cat predation do not approach 50 percent: a Santa Monica Mountains National Recreation Area study of Los Angeles coyotes found cat remains in about 20 percent of urban scat, and Southern California stomach-content research put cats at roughly 8 percent of urban coyote diets. No San Francisco or Bay Area study supports the claim that pets made up 50 percent of any coyote group's diet, so the figure is substantially overstated.

What the evidence shows: Supported. The Reuters investigation "Alien fever dreams fuel Peruvian grave robbings" (April 6, 2024, reuters.com/world/americas, ON allowlist) is live and states verbatim: "Rivera was convicted in 2022 of assault on public monuments for unearthing the artifacts. He received a four-year suspended sentence and was fined about 20,000 Peruvian soles ($5,190), short of the maximum penalty of an eight-year prison term." That matches every figure in Rogan's reading: 2022 conviction, the charge (assault on public monuments), four-year suspended sentence, ~20,000 soles, and $5,190. The grave robber is named Leandro Rivera, who unearthed the Nazca "three-fingered" bodies later presented by Jaime Maussan in Mexican UFO hearings; Rogan's phrasing "promoter of the Nazca mummies" fits Rivera, the source of the remains. Rogan's attribution "according to Reuters" is also correct. The reuters.com page is blocked to the WebSearch/WebFetch crawler but was confirmed LIVE via a Firecrawl scrape returning the full article body. Numerous off-allowlist syndications (VOA, SWI swissinfo, streetinsider, thestar) carry the identical Reuters wire text, corroborating the figures.

What the evidence shows: The reading reflects a real 2024 proposal by Christopher Bae and Xiujie Wu, published in Nature Communications, of a new archaic human taxon named Homo juluensis (from Mandarin for large head), whose defining trait is unusually large, thick-walled skulls found at sites in eastern Asia. The paper places these Homo juluensis fossils at roughly 200,000 to 160,000 years ago (Late Quaternary), consistent with the quote's over 200,000 years figure, and situates them among multiple hominin lineages present as Homo sapiens was emerging and dispersing. Popular coverage, including the ScienceAlert piece Rogan cites, describes cranial capacities of about 1,700 to 1,800 cubic centimeters, larger than Neanderthals or modern humans, though the peer-reviewed paper itself does not state those exact figures and the classification (especially folding in Denisovans) remains debated among specialists. The core facts, an eastern Asian large-headed group dated beyond 200,000 years that overlapped with early Homo sapiens, are accurate, with the precise brain-size numbers coming from secondary reporting rather than the primary paper.

What the evidence shows: Rogan is describing the November 2004 USS Nimitz Tic Tac encounter, and the gist (advanced radar tracked objects making descents that pilots and operators could not explain) matches the record, but his numbers are off. In his sworn statement and testimony to the House Oversight Committee, pilot David Fravor says the USS Princeton's Aegis combat system tracked objects for two weeks descending from above 80,000 feet and coming rapidly down to 20,000 feet, where they would loiter for hours before shooting back up. That is above 80,000 feet (Fravor notes above 80,000 feet is effectively space), not above 50,000 feet, and the loiter altitude was 20,000 feet, not 50 feet. The specific near-sea-level drop in under a second (Kevin Day's after-the-fact radar analysis put a 28,000-foot drop at roughly 0.78 seconds) is a separate, more disputed claim that traces largely to a single radar operator and does not appear in Fravor's official statement. So the underlying event and its inexplicable radar signature are real, but Rogan's altitude figures are off.

What the evidence shows: This is an uncontrolled personal anecdote, and no rigorous evidence supports quercetin, zinc, and ivermectin clearing COVID-19 within 24 hours. Mild COVID-19 symptoms commonly resolve on their own over days regardless of treatment, so a single fast recovery cannot be attributed to a supplement protocol. The largest randomized outpatient ivermectin trials found no clinically meaningful benefit: the NIH-funded ACTIV-6 trial (1,591 patients) reported a median time to recovery of 12 days with ivermectin versus 13 days with placebo (hazard ratio 1.07) and concluded the findings do not support ivermectin use. Fact-checkers reviewing the TOGETHER, ACTIV-6, and COVID-OUT trials likewise found no benefit for recovery, hospitalization, or death, and the NIH recommends against ivermectin for COVID-19 outside research. Quercetin and zinc data come from small, often open-label studies with mixed results and no demonstration of same-day viral clearance.

What the evidence shows: This is a single, uncontrolled anecdote, and it is not supported by controlled clinical evidence. Peer-reviewed reviews state that ivermectin has not been clinically evaluated in cancer patients and remains established only as an antiparasitic, with no large-scale randomized controlled trials confirming any anticancer benefit. Research on ivermectin in prostate cancer is exclusively preclinical, conducted in cell lines and xenograft mice, and the investigators themselves call for future clinical evaluation rather than reporting any cure in patients. A single patient's PET result cannot establish that ivermectin cleared his cancer, especially without molecular confirmation or a controlled comparison, and no evidence shows ivermectin cures or clears Gleason 7 prostate cancer.