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Weekly · Sunday Morning

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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

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Why it’s a dangerous time to brush your teeth with toothpaste — Whalespan

Content›Video›Why it’s a dangerous time to…

Why it’s a dangerous time to brush your teeth with toothpaste

Paul Saladino6m · 2022-04-14

Claims Made

16

Claims Supported

7

Support Rate

44%

Support rate

7 of 16 claims supported

7 supported9 partial / not

Claims from this content

12

✓Well SupportedVitamin K2 is synthesized by bacteria during fermentation and is not found in plant foods.✓Well SupportedMouth breathing may be caused by nasal malformations due to insufficient fat-soluble vitamins during pregnancy and childhood.✓Well SupportedPaul Saladino avoids toothpaste with fluoride and does not use toothpaste.✓Well SupportedA long-term vegan diet may lead to deficiencies in carnitine, choline, vitamin K2, B12, and peptides, which are found in animal foods.✕Not Supported

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A. Volkovreader

4h

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

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N. Park

2d

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

Toothpaste may contain microplastics like polyethylene glycol and polyoxamer 404.

◐Partially SupportedWidespread use of fluoride is driven by widespread nutrient deficiencies, particularly in fat-soluble vitamins.

◐Partially SupportedThe Hadza people's brown teeth stains may be linked to tobacco, marijuana use, or fluoride in their water.

✕Not SupportedExcess fluoride intake can lead to dental mottling, staining, and bone fluorosis.

◐Partially SupportedHigh fluoride intake from dental trays, toothpaste, and fluoridated water can lead to significant exposure, especially in children.

◐Partially SupportedFluorosis, characterized by brown stains on teeth, can result from massive fluoride intake in drinking water.

◐Partially SupportedHunter-gatherer groups like the Maasai, if they don't smoke, generally have broad white smiles.

✕Not SupportedBeing vegetarian, vegan, or pescetarian is dangerous due to potential exposure to microplastics.