Audit a URL →

Sign in Sign up free

Loading…

Weekly · Sunday Morning

Five longevity claims.
Worth your time.
Every Sunday.

Last Sunday

Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

5 audits·1 verdict change·0 affiliate links·Every Sunday

Joining 1,247 readers — founders, MDs, and longevity-obsessed people who fact-check their own health decisions.

Browse

Decisions Claims Content Creators

Product

Audit a URL Sunday roundup API (soon)Pricing

About

FAQ Methodology Editorial Standards Corrections Press & brand RSS feed

Legal

Terms of Service Privacy Policy DMCA

Finally, something serious in this space.
Because we actually read the papers.

© 2026 Whalespan. Independent, evidence-graded longevity.

What Netflix's Documentary Didn't Tell You — Whalespan

Content›Video›What Netflix's Documentary D…

What Netflix's Documentary Didn't Tell You

Paul Saladino11m · 2024-03-12

Claims Made

28

Claims Supported

19

Support Rate

68%

Support rate

19 of 28 claims supported

19 supported9 partial / not

Claims from this content

20

✓Well SupportedAll vitamins and minerals found in plants can be obtained from animal sources in more bioavailable forms.✓Well SupportedRegenerative agriculture where cows graze land in an ancestrally consistent manner can sequester more carbon into the soil than they produce.✓Well SupportedDecreasing saturated fat intake and increasing polyunsaturated fat intake may lead to a decrease in LDL cholesterol but an increase in oxidized LDL and Lp(a).✕Not SupportedVegan diets can lead to nutrient deficiencies that impair fertility, energy, mental clarity, and strength.Well Supported

Discussion

Native comments, Twitter mentions, and Reddit threads about this content — surfaced together so the conversation isn't fragmented across platforms.

M

Share your read of this content…

Posting publicly as you · linked to your social profiles

Sort by:

AV

A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

NP

N. Park

2d

Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

✓

A long-term vegan diet may lead to deficiencies in carnitine, choline, vitamin K2, B12, and peptides, which are found in animal foods.

◐Partially SupportedLivestock contributed 3.9% to U.S. greenhouse gas emissions around 2016, with beef accounting for about 2% of that.

◐Partially SupportedIn the 'You Are What You Eat' twin study, the vegan group lost more weight due to fewer calories, not the diet itself.

◐Partially SupportedBeyond Meat products have higher carbon emissions than regular meat and are worse than carbon-negative regenerative agriculture practices.

◐Partially SupportedMonocrop agriculture and plant-based burgers are carbon positive, unlike regenerative agriculture with grazing animals.

◐Partially SupportedConsuming healthy animal fats like butter or red meat is unlikely to increase cardiovascular risk if they do not worsen metabolic dysfunction.

✓Well SupportedRegenerative agriculture practices can make meat climate positive and carbon negative.

◐Partially SupportedVegan participants in 'You Are What You Eat' lost significantly more muscle mass than omnivores.

✕Not SupportedThe study and Netflix documentary promoting veganism are misleading and present incomplete data.

✕Not SupportedLarge meta-analyses show no negative cardiovascular risk associated with increased saturated fat intake from animal sources.

◐Partially SupportedIndividual DEXA scan data for weight, fat, and muscle mass loss was not presented in the twin study paper or supplemental materials.

◐Partially SupportedThe vegan group in the study showed decreased Vitamin B12 levels, while the omnivore group showed increased levels.

◐Partially SupportedResearchers in the study did not measure oxidized LDL or Lp(a), only LDL.

◐Partially SupportedVegans consistently rated their meals with less satisfaction than omnivores.

◐Partially SupportedWeight loss from a reduced-calorie diet, even from unhealthy foods like Twinkies, can lead to improvements in insulin sensitivity.

◐Partially SupportedSaturated fats in dairy are associated with lower liver fat and improved cardiovascular outcomes.