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.

The Truth About Seed Oils & Obesity — Whalespan

Content›Video›The Truth About Seed Oils & …

The Truth About Seed Oils & Obesity

Paul Saladino8m · 2024-10-19

Claims Made

23

Claims Supported

9

Support Rate

39%

Support rate

9 of 23 claims supported

9 supported14 partial / not

Claims from this content

20

✓Well SupportedSoybean oil increases lipoprotein-associated phospholipase A2 (LpPLA2) in humans.✓Well SupportedHumans have no history of consuming seed oils in significant amounts, and populations that begin consuming them inevitably become sick and obese.◐Partially SupportedThe traditional ancestral diet contained approximately 1% linoleic acid, whereas the average modern diet contains around 10%.✓Well SupportedA Westernized dietary pattern, characterized by processed foods, increases hunger by hijacking satiety mechanisms.Partially 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.

◐

The average American consumes 5 to 7 tablespoons of seed oils per day.

✓Well SupportedEliminating seed oils may lead to significant health improvements, including better metabolic markers.

◐Partially SupportedConsuming pounds of brown rice is equivalent to 3 tablespoons of rice bran oil.

◐Partially SupportedOmega-6 fatty acids, such as linoleic acid, have a half-life of 680 days in cell membranes.

◐Partially SupportedConsuming 2.5 pounds of sunflower seeds daily is equivalent to 5-7 tablespoons of sunflower seed oil, an amount humans were not historically exposed to.

◐Partially SupportedRefined sunflower seed oil production involves heating oil to high temperatures and extraction with potentially neurotoxic chemicals.

◐Partially SupportedConsuming 5-7 tablespoons of seed oil daily is equivalent to eating 60-70 ears of corn.

◐Partially SupportedJunk foods should have warning labels highlighting their association with obesity, erectile dysfunction, sleep apnea, and diabetes.

◐Partially SupportedThe widespread consumption of damaged seed oils contributes to high rates of obesity and poor health in Americans.

◐Partially SupportedConsuming over two pounds of soybeans is equivalent to 5-7 tablespoons of soybean oil.

✕Not SupportedClaims that seed oils are harmless are derived from poorly conducted meta-analyses that included trials where the saturated fat control group was contaminated with trans fats.

◐Partially SupportedSeed oils were historically used as motor oils and lubricants during World Wars I and II due to their slipperiness.

◐Partially SupportedProducing rice bran oil involves a highly industrial process including bleaching, deodorization, massive heating, and hexane extraction contaminated with benzene.

◐Partially SupportedPlastic containers for seed oils can leach antimony into the oils.

✕Not SupportedHarvard's research on seed oils may be influenced by seed oil companies.

◐Partially SupportedSeed oils are associated with more oxidized LDL and increased Lp(a) compared to olive oil or other fats.