Evident Health

We buy health products, test them ourselves, and publish what we find, including on brands we own (Sleep Karma). No brand pays for a score.

[Evident Health @getevident]

Most health claims start with 'a study found.' Here's what a real clinical study is, in under 90 seconds, so you can tell good research from a press release.

[Evident Health @getevident]

@foundmyfitness Nuance on the 99%: EWG counted 863 GRAS notices vs 10 additive petitions since 2000. Those notices did go to FDA, which reviews but doesn't approve them. The bigger blind spot is self-affirmed GRAS never notified, est. 1,000+. Mandatory notification would close that one.

[Evident Health @getevident]

@EricTopol Key details: 31 young vs 41 older adults, short sleep runs in an MRI. In older adults, CSF flow didn't significantly rise from wake to NREM, tied to fewer slow waves and weaker vessel responses. Clearance wasn't measured and it's one snapshot, so a link, not proof of cause.

[Evident Health @getevident]

@paulsaladinomd Worth separating: 1,4-dioxane is a trace byproduct, not an ingredient, and NY caps it at 1 ppm, so detergents legally sold there meet that. Phthalates mostly ride in fragrance, so fragrance-free gets you most of the way. Vinegar has no surfactant, the part that lifts body oil.

[Evident Health @getevident]

@Feralfairy13 Some data agrees: in a 697K-person genetics study, genes for being a morning person tracked with higher wellbeing. Catch: those genes only shift sleep timing ~25 min, and part of chronotype is inherited. So it may be less "become one" and more keep a steady wake time.

[Evident Health @getevident]

https://t.co/3VRBlTZImH

[Evident Health @getevident]

When a label says "lab-tested," ask: tested by whom?

We flag this even on our own brand. Sleep Karma says its adhesive is tested to ISO 10993. On our review that's marked brand-published, not an Evident lab test.

Disclosure: Evident Health LLC owns Sleep Karma.

[Evident Health @getevident]

@SBakerMD Worth reading the fine print: Virta researchers, claims data, and it compares a whole program (coaching, daily ketone checks, med changes) with usual care. People who join and stick with that differ from controls. HR 0.44 for MACE-3 is a strong reason for an RCT, not proof yet.

[Evident Health @getevident]

@thegarybrecka Lab-made is also the form with proof: folic acid is the only folate tested in RCTs to prevent neural tube defects (72% fewer in the 1991 MRC trial). Methylfolate hasn't been. And MTHFR TT carriers on 400 mcg folic acid still reach protective blood folate levels.

[Evident Health @getevident]

@gregisenberg Fun one: the cheapest item here has the best data. Among 122,007 adults treadmill-tested at Cleveland Clinic, the least fit had 5x the adjusted death risk of the fittest over ~8 years. Observational, but a bigger gap than smoking (1.4x). A status symbol that costs sneakers.

[Evident Health @getevident]

@KenDBerryMD Both data recoveries matter. Fine print: Sydney was 458 men just after a heart event, and the death gap was borderline (95% CI 1.00-2.64). Minnesota: of 9,423 enrolled, only 2,355 stayed on the diets a year+. Fair read: the LDL drop didn't buy survival. Not proof seed oils kill.

[Evident Health @getevident]

@foundmyfitness Worth knowing what this paper is: a one-time snapshot of 172 adults, not people tracked as they aged. Total grey matter wasn't linked to VO2peak; one parietal region was. The trial evidence: a year of walking grew the hippocampus ~2% in 120 older adults (Erickson 2011).

[Evident Health @getevident]

@FPLChris_ @biohacker Not who you asked, but a tip: only add tape if your nose breathes freely with the strips on. A 2025 review (10 studies, 213 people) found weak evidence for mouth taping and flagged risk with a blocked nose. 3M Micropore is surgical tape, so test it on your lips first.

[Evident Health @getevident]

@toddsaunders @eightsleep Chilipad 2.0 (Sleepme) is the closest no-subscription option: water-cooled pad, 55–115°F, and Sleepme says cooling, heating and app schedules never need a membership. Tradeoff: no built-in sleep tracking. Temperature control is the part with real evidence behind it anyway.

[Evident Health @getevident]

@davidasinclair The bar to beat: in a 903-person RCT, daily sunscreen users showed no detectable increase in skin aging over 4.5 years (24% less than discretionary use). Tretinoin has had vehicle-controlled trials since 1988. New longevity skin treatments should have to publish against that.

[Evident Health @getevident]

@EricTopol The trial clock is the hard part. Of drug programs entering phase 1 in 2000-2015, 13.8% reached approval, and 3.4% in oncology (MIT, 21K+ compounds). AI can raise those odds, but each disease still needs years of outcome trials. Faster, yes. All cured in 10 years, no.

[Evident Health @getevident]

@bryan_johnson Fine print: no rat got younger. Researchers compared gene changes in LSD-treated rat brains to aging patterns in human brain tissue and found they ran opposite. The amyloid result was in lab-grown neurons. No human data yet, and a gene signature isn't the same as slower aging.

[Evident Health @getevident]

@paulsaladinomd The cold balls part is doing real work. Small study: 10 healthy men, two 15-min saunas a week for 3 months, and sperm counts fell by more than half. Hormones didn't change, and counts fully recovered ~6 months after stopping. Matters most if you're trying to conceive.

[Evident Health @getevident]

https://t.co/RfdmCfBQ1c

[Evident Health @getevident]

16 of 20 people in our mouth tape pilot rated sleep higher on tape nights. The 4 who didn't are still in every average.

What it can't tell you: nobody was blinded, so expectation could inflate scores.

The tape was Sleep Karma. Disclosure: Evident Health LLC owns Sleep Karma.

[Evident Health @getevident]

@foundmyfitness Trials back the premise: a 49-person crossover found hard cheese gave 6.9% lower LDL than butter at equal fat (Hjerpsted 2011); a 164-person trial saw lower LDL with full-fat cheddar vs butter + casein + calcium (Feeney 2018). Caveat: 6-week LDL results, not heart-event outcomes.