This week's switching report

Why long-time NAD+ users are drifting toward urolithin A

Both are sold as cellular energy supplements. Their human evidence bases are built very differently, and buyers are starting to notice.

Two amber supplement bottles beside a cut pomegranate.

2026-08-28  |  8 min read

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Tracking
What people drop
Grading
Human trial data
Checking
Labels and doses
Ignoring
Press releases

What we cover

Three questions run through everything here: what are people switching to, what does it do inside the body, and does the label match the bottle.

What is moving

The switching report

What people are dropping, what they are picking up instead, and whether the trial record supports the move.

  • Mitophagy and autophagy compounds
  • NAD+ precursors
  • Senolytics
  • GLP-1 adjacent products
Open the switching report

Glucose and fuel

Metabolic signals

Continuous glucose data, protein, and the metabolic claims attached to almost every product launched this year.

  • Continuous glucose monitors
  • Post-meal glucose response
  • Protein and satiety
  • AMPK and metabolic botanicals
Open metabolic signals

What is in the bottle

Label and dose

Bioavailability, standardisation, third-party marks, and the gap between a trialled dose and a marketed one.

  • Oral bioavailability
  • Certificates of analysis
  • Third-party certification
  • Serving size arithmetic
Open label and dose

Recently reviewed

Each piece gets re-read when new trial data lands. Filter by section to see what changed.

What we are working on

Stories in progress, with roughly where they stand. Vote to tell the desk what to prioritise.

Publishing soonAbout 1 week

Creatine's second act: from gym tub to cognition claim

Sorting the muscle evidence, which is strong, from the brain evidence, which is early.

Progress92%
In reviewAbout 3 weeks

What happened to resveratrol

A category that dominated 2010s longevity marketing and quietly lost its shelf space.

Progress74%
DraftingAbout 5 weeks

Shilajit: the supply chain nobody wants to discuss

Heavy metal contamination reports, sourcing opacity, and what testing would actually catch.

Progress48%
ResearchingAbout 8 weeks

Do longevity stacks interact with each other

Most trials test one compound. Most buyers take six. We are looking for anyone studying the combination.

Progress21%
ResearchingAbout 9 weeks

Price per effective dose across 40 products

Cost comparisons usually use price per bottle. We are rebuilding them around the dose that was actually trialled.

Progress15%

Write for us

We take pitches from pharmacologists, dietitians, formulators, and analytical chemists. We do not take pitches from brands.

Ingredient reviews

Walk through the human trial record for one compound, including the trials that found nothing. Dose, format, and duration matter more than mechanism.

Formulation and analysis

How a product is actually made: excipients, standardisation, stability, and what a certificate of analysis does and does not prove.

Market and regulation

Category shifts, recalls, warning letters, and the gap between what a label may legally say and what marketing implies.

What we will and will not publish

  • Claims must trace to a named trial, review, registry entry, or regulator document.
  • Pieces run 1,200 to 2,500 words and say plainly where the evidence is thin.
  • No paid placements, no affiliate copy dressed as reporting, no brand-supplied claims.
  • Any commercial relationship, including free product, is disclosed in the byline.

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Editors' picks

Longer pieces we keep sending people back to.