The evidence base

What this site is built on, topic by topic: how many papers, how many are trials, and how recent. Generated from the harvest, so it cannot drift from the citations themselves.

Where the evidence sits. The 6 topics below are not equally well studied, and the gap between the largest and smallest is usually the most useful thing on this page. Source: this site’s own citation harvest from PubMed and Crossref.

Study type matters more than volume. A hundred observational papers and five randomised trials support very different claims, so the mix is worth reading before the counts. Source: publication types as recorded by PubMed.

21 papers

Also from us

Tools and books we publish that are relevant to this page. These are ours — we say so rather than presenting them as neutral picks.

App 🌾 Gluten Free Scanner
Scan a barcode, get a gluten verdict backed by ingredient data
App 🧳 TravelScanning
Scan menus and labels abroad in your own language
App 🌍 Decarbonr
AI carbon tracker — meals, transport and lifestyle as one daily CO₂e number
App 🔌 Drive Charge Eat
EV trip planner: charge where there's food, restrooms and people
App ⏱️ LyteFast
Intermittent fasting timer with an evidence-based coach
App 🐟 Sardines Fasting
Structured fasting protocols with a food-first approach
App 🩺 CrohnScanning
Trigger-food scanning for Crohn's and colitis
Book 📗 The Gluten Scanning Handbook
How to read a label, judge a "may contain" warning, and eat out without gambling.

The evidence base

Altitude

Jet lag

Allergy abroad

Travel food safety

Travel vaccines

Travellers diarrhoea

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The Book Verdict