Resources · NutraSafe

Resources.

Guides, calculators and the UK food library. Plain English, sources cited. The same things the app reads back to you, in a format you can browse on the web.

UK references throughout Free to use Last reviewed 15 June 2026
01 Libraries and tools

Pick your starting point.

The most-used resources first. Each one is independent and free to browse.

i · Library

E-number library

Every E-number we recognise, in plain English. What it is, where it shows up, what the regulator said. Browse by number or by group.

Open the A to Z →
ii · Reference

Big 14 UK allergens

What UK law requires on a label, how to spot each one in the ingredient list, and what the difference is between an allergy and an intolerance.

Read the guide →
iii · Guide

UK label decoder

Ingredients, allergens, the traffic-light front-of-pack, the per 100g column. How to read it in 30 seconds.

Decode a label →
iv · Guide

Food additives, watched.

The additives where the science is worth knowing: the Southampton Six, sulphites, nitrites, processed-meat caps. Sources cited.

See what to watch →
v · Guide

Vitamins & minerals against UK NRV

14 vitamins and 13 minerals, with NRV targets and what to eat to top each one up. The micronutrient side of the diary.

Open the guide →
vi · Calculator

TDEE & BMR calculator

Estimate your daily calorie needs from age, sex, weight, height and activity. The starting point for any calorie target.

Run the calculator →
vii · Guide

Ultra-processed food

What NOVA 4 actually means, the categories most often involved, and what UK research has shown about regular UPF intake.

Read the UPF guide →
viii · Guide

Intermittent fasting basics

16:8, 5:2, 18:6 explained. When to talk to your GP first. How the fasting timer in the app fits in.

Read the basics →
ix · Field notes

Blog

Field notes from inside the food databases. Supermarket guides, additive deep-dives, ingredient breakdowns.

Browse the blog →

Then put it in your pocket.

The library is on the web. The diary, the scanner, the trends and the AI Coach are in the app.

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