Last reviewed: 7 May 2026
The Coach in our app reads what you have eaten today, this week and this month, plus your reactions and your nutrient gaps, and answers questions in that context.
Plain English: a chat that already knows what you have eaten this week.
An AI nutrition coach, the way we built it, is a conversation inside our app that has read-access to your food diary, your reactions and your nutrient totals. You type a question, the Coach answers using the data you have logged, not a generic answer trained on the open web.
That distinction matters. A general-purpose chatbot can tell you the average protein content of Greek yoghurt. The Coach in our app can tell you that you averaged 42 g of protein last week against a target nearer 65 g, that breakfast is the day you fall short, and which of the foods already in your diary close that gap fastest. Same model class, very different answers, because of context.
There are three streams of context the Coach can see, when you have given the app permission:
Every meal and snack you have logged today, this week and this month. Calories, protein, carbs, fat, fibre, sugar, saturated fat, salt. Portion sizes you actually picked.
Bloating, headache, energy, mood, sleep, skin, gut. Logged against the foods that came before them, so the Coach can see what tends to cluster.
Scored against UK Nutrient Reference Values across vitamins A, B-complex, C, D, E, K and minerals iron, calcium, magnesium, zinc, potassium, selenium and more (NutraSafe Pro).
Replies use UK GTINs, UK portion sizes and UK NRVs. Suggestions are foods you can buy in Tesco, Sainsbury's or Aldi this afternoon.
Real questions, grounded in your own diary. Not medical questions — pattern questions.
The Coach is good at answering questions where the answer depends on what you have eaten. Here are concrete examples that work because the data is there.
What the Coach is not good at, by design, is answering medical questions. It will not tell you whether you have IBS, an allergy or a deficiency. It will tell you what the pattern in your week looks like, and recommend you take that pattern to a GP or registered dietitian if it warrants action. That is the line we hold.
Here is what it looks like inside the app.
An honest line on what we built, and what we did not build.
The Coach is not a registered dietitian. It does not hold the qualifications, it does not carry clinical responsibility, and it does not have a regulator behind it. The British Dietetic Association keeps a directory of real ones; if you have a clinical question, that is the right address.
It is not a GP either. It cannot diagnose IBS, coeliac disease, an allergy, a deficiency or anything else. It will not interpret blood test results or screen for an eating disorder. Where a question crosses that line, the Coach's job is to say so, summarise the pattern, and recommend you speak to your GP.
It is not infallible. It is built on a large language model with all the limits that implies. We engineer the prompts, we constrain the context to your real diary, and we ground replies in UK guidance — but a wrong answer is still possible. Treat the Coach as a thinking partner with access to your week, not as a source of truth.
What it is, then: a pattern-spotting and question-answering tool, available in our app, that turns logging into conversation. That is a useful thing. It is not the same thing as a clinician.
The National Diet and Nutrition Survey 2019 to 2023 (gov.uk, June 2025) found 18% of UK adults aged 19 to 64 had low vitamin D status, and 83% of women of childbearing age had red-cell folate below the threshold associated with reduced neural-tube-defect risk. Not a marketing claim — a population-level finding.
When the Coach has visibility of your vitamin and mineral totals against UK NRVs (NutraSafe Pro), questions like “am I getting enough vitamin D this week?” have a real answer instead of a hedge. The Coach can show you the gap, and you can take that to your GP.
Two steps. Open the Coach tab, ask in plain English.
The AI Coach is a Pro feature. Here is exactly what is in each tier, taken from the code.
Our app is free to download. A useful slice of the experience is genuinely free, and we do not gate barcode scanning or basic logging. The AI Coach, though, is paid. It runs on cloud infrastructure that costs us per conversation, and we charge accordingly.
No annual plan. No free-trial-then-surprise-charge. It is 3.99 a month, monthly, on iOS, and you cancel from the App Store any time.
Your food diary is only used to generate replies inside the app. We do not sell it, share it with advertisers, or use it to train AI models.
Coach conversations are processed to produce a reply — that is it. Full detail in our privacy policy.
NutraSafe is operated by an independent developer in the United Kingdom.
Honest answers, in our voice.
It is a chat inside our app that has visibility of what you have actually eaten. Our Coach reads your food diary, your reactions and your vitamin and mineral totals against UK Nutrient Reference Values, and answers questions in that context. It is not a chatbot trained on the open web with no memory of your week.
Anything grounded in your own data. Examples: why was I bloated yesterday, am I getting enough iron this week, plan a high-protein lunch using foods I have logged before, what is dragging my fibre down. The Coach replies using your diary, not a generic answer that could apply to anyone.
No. Our Coach is a tool for spotting patterns and asking questions. It does not diagnose, prescribe or replace a clinician. If you are dealing with a medical condition, an eating disorder or a suspected allergy, speak to your GP or a registered dietitian. The British Dietetic Association keeps a directory at bda.uk.com. For a longer comparison see AI diet advice vs seeing a dietitian.
It reads what you log in the app — meals, snacks, portion sizes, calories and macros, and on NutraSafe Pro your vitamin and mineral totals against UK NRVs. It also sees the reactions you record (bloating, headache, energy, mood, sleep, skin, gut). The more consistently you log, the more useful its replies become.
No. The AI Coach is a NutraSafe Pro feature at 3.99 a month, iOS, monthly only. The free tier covers logging up to 25 foods a day, barcode scanning with our additive grade, 5 reactions, and the public E-number lookup. It does not include the Coach.
Because the gaps the Coach can surface are real here. The UK National Diet and Nutrition Survey 2019 to 2023 (gov.uk, June 2025) found 18% of adults aged 19 to 64 had low vitamin D status, and 83% of women of childbearing age had red-cell folate below the threshold associated with reduced neural-tube-defect risk. We score against UK NRVs, not US RDAs.
No. Your food diary is not used to train any AI models. Your conversation with the Coach is processed to generate a reply and is not retained for training. We do not sell your data. Full detail is in our privacy policy.
No. NutraSafe Pro is monthly only. It is 3.99 a month on iOS, and you can cancel from the App Store at any time.
Download our app, log a week, and ask the Coach what your diary actually shows.
Get NutraSafe on the App StoreFree to download. NutraSafe Pro · £3.99/month · iOS · monthly only.
Last updated 7 May 2026