Last reviewed: 8 May 2026
Our hub of UK-focused guides on food additives, intolerances, calories, macros, and how we built the app.
This is our index of food-safety and nutrition guides for UK readers. We wrote it for the supermarket-aisle moment when you want to know what an ingredient does to your body, or for the quieter moment after a meal when you want to understand a reaction.
Each section below groups related guides — additives and E-numbers, intolerances and reactions, calories and macros, and how our app compares to others. Pick the category closest to your question, read the one-line description, and jump into the guide that fits. We update the hub when sources change or we ship something new.
Plain-English guides to what's in your food: what each E-number is, what published science says about it, and how to read an ingredients list without a chemistry degree.
Searchable index of more than 500 food additives with categories, common uses, and what the published evidence says. The starting point if you want to look something up by number.
GuideHow additives are grouped — colours, preservatives, sweeteners, emulsifiers — and where the watchlist concerns sit within each group.
Food SafetyA short history of the E-number system, why two products can list "E160a" or "carotene" interchangeably, and how UK labelling rules work.
ToolsHow we built the additive lookup behind our scanner, what it flags, and the limits of any ingredient-list-based check.
Trackers and guides for people working out what their body doesn't get on with. We're a logging tool — none of these pages diagnose anything. They help you collect the diary your GP or dietitian will ask for.
How to log reactions over weeks, look for patterns, and put the results in front of a clinician. Our reaction logging is free for the first five entries.
SymptomFor the readers whose main complaint is post-meal bloating. We cover what to log alongside food — timing, severity, drinks, stress — to make patterns easier to spot.
HealthA broader view: fibre, fermented foods, hydration and reactions in one diary. We don't claim to diagnose IBS or anything else — only to make the diary part easier.
ReactionHow dairy shows up in UK labels, the difference between lactose and milk-protein reactions, and how to log dairy exposure without weighing every coffee.
ReactionFor the non-coeliac wheat-and-bloat question. We explain what the data can and can't tell you, and why a coeliac test before cutting gluten still matters.
Numbers-first guides for tracking calories and macronutrients. We try to keep the maths transparent — if a calculator says 2,100 kcal, we want you to know roughly why.
What calorie counting actually measures, where the numbers on packs come from, and how UK serving sizes complicate the daily total.
MacrosProtein, carbs and fat in plain English: what a "high-protein" target looks like in real food, and how we display macros against your goals.
CalculatorEstimate your basal metabolic rate and total daily energy expenditure. We show the formula we use and the uncertainty on the answer.
DietPractical UK protein sources, what the SACN evidence supports, and how to read a "high-protein" claim on a supermarket label.
Long ReadOur longer reference covering 30+ common diet questions, from sugar tax labelling to how UK and US calorie counts differ.
How our app works, and how it differs from other UK food-tracking and food-scanning apps. We try to be straight about what's free, what's paid, and where another app may suit you better.
Inside our barcode scanner: what the database covers, what we flag on an additive list, and where the limits are. Free for everyone.
ComparisonWhere Nutracheck's UK database and our additive-first scanner overlap — and where they really don't. Honest about the gaps in both.
ComparisonHow our approach differs from Yuka's letter grades and verdict pills. We show composition strips and watchlist flags rather than a /100 score.
Round-upOur updated round-up of the main UK food-scanning apps, including NHS Food Scanner, Yuka, MyFitnessPal and ours.
Two longer reference pages we maintain on the /resources/ path — written for readers who want more than a feature explainer.
Why vitamins and minerals are harder to log than calories, the UK NRV (Nutrient Reference Value) framework, and how we show daily progress.
Fasting16:8, 18:6, 5:2 and OMAD compared on practicality rather than hype. Includes who tends to find each schedule manageable, and who doesn't.
We're a tracking app, not a clinic. We won't tell you whether a specific food is "safe" for your body, prescribe an elimination plan, or recommend a particular brand over another. We also won't pretend a number from any app — ours included — replaces a conversation with a GP, NHS dietitian, or registered nutritionist when symptoms are persistent or severe.
What we will do: explain the published evidence in plain UK English, show you what our scanner sees, and give you a diary you can take to a clinician when you need one.
Free to log up to 25 foods/day · NutraSafe Pro £3.99/month for AI Coach, allergen warning detail and full reaction history.