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 10 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.

14 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 🌍 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 🌾 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
Book 📕 Drive, Charge, Eat
Planning long EV journeys around charging reality rather than brochure range.
Book 📙 Your Carbon Footprint
Where personal emissions actually come from, and which changes move the number.
App 🌙 BioClock Sleep
Circadian-aware sleep and light tracking
App 🩺 CrohnScanning
Trigger-food scanning for Crohn's and colitis

The evidence base

Total cost of ownership

Incentives

Depreciation

Battery resale

Mileage Total cost of ownership

Car finance

Energy cost

Cold weather

Insurance

Transport health

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Travel Health Evidence

Carbon Evidence

The EV Route