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.

Are carbs the root-cause of metabolic dysfunction? — Whalespan

Content›Video›Are carbs the root-cause of …

Are carbs the root-cause of metabolic dysfunction?

Paul Saladino5m · 2020-11-25

Claims Made

13

Claims Supported

5

Support Rate

38%

Support rate

5 of 13 claims supported

5 supported8 partial / not

Claims from this content

11

◐Partially SupportedMetabolically healthy individuals can consume carbohydrates without developing diabetes if they avoid polyunsaturated fats at evolutionarily inconsistent levels.◐Partially SupportedExcessive fructose and sugars, and the body's insulin response, are the primary issues related to carbohydrates and metabolic dysfunction.◐Partially SupportedContinuous high insulin levels can lead to insulin resistance.◐Partially SupportedPolyunsaturated fats are a more likely primary driver of metabolic dysfunction in humans than carbohydrates.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.

◐

Models using exogenous insulin to induce insulin resistance in mice show that the body never gets a break from insulin signaling.

◐Partially SupportedConsuming real starches and real fats allows for the consumption of any macronutrient without negative metabolic consequences once the body has recovered from prior metabolic dysfunction.

◐Partially SupportedAchieving insulin-induced insulin resistance in humans solely through high carbohydrate intake without exogenous insulin would likely require near constant consumption of sugar and candy.

◐Partially SupportedInability to stop eating carbohydrates may be linked to polyunsaturated fat consumption.

◐Partially SupportedKetogenic and low-carb diets are helpful for individuals with type 1 or type 2 diabetes but may sidestep the core cause of metabolic dysfunction.

◐Partially SupportedSucrose can act as a health food in certain mouse models, promoting leanness, insulin sensitivity, and thermogenesis.

◐Partially SupportedPolyunsaturated fats are likely the primary cause of type 2 diabetes, with low-carbohydrate diets acting as a way to manage the symptoms.