Guide

Hashimoto and nutrition: keep your nutrients and symptoms in view

Fatigue, a heavy head, a day where nothing works – and the open question of how much of it has to do with food. A food diary puts meals, symptoms and nutrients side by side, with their times. NutriSpy keeps it as an app and carries selenium, iodine, zinc, iron, vitamin D and B12 along the way.

Why a diary helps after the diagnosis

After the diagnosis, most of it is still guesswork. The thyroid is being settled onto a dose, the days stay uneven, and the internet says something different about every food. Change everything at once and you learn nothing about which part of it helped.

A diary turns the question around: instead of a general list, you ask your own days. What did the day look like when you felt good? How much selenium, iodine, zinc and iron actually added up over the week? And what went with every tired afternoon?

"I have been using Haily since my Hashimoto diagnosis and I am really impressed. Voice input makes tracking extremely easy and saves a lot of time in everyday life. Since I am currently being settled onto medication, the app helps me enormously to understand the connection between food and symptoms. Especially valuable: you can keep a proper eye on nutrient deficiencies – often a topic with Hashimoto – thanks to the clear graphics."
— App Store review, May 2026, translated from German

Rather start on paper? Here is the printable PDF template – with the same columns the app keeps.

A meal in one sentence

Speak it, photograph it, scan the barcode or type it – one sentence is enough. NutriSpy breaks the meal into ingredients and nutrients. That is what the review meant by "saves a lot of time in everyday life": a diary has to fit the day, or it does not get kept.

Selenium, iodine, zinc, iron, D and B12

Behind every meal sits the full nutrient profile – next to calories and macros, the trace elements and vitamins that so often come up with Hashimoto. The statistics show where you sit low week after week.

Symptoms with their times

Fatigue, feeling cold, trouble concentrating, digestion, mood – named as a symptom, with a timestamp. It is the time of day that later shows the distance to the meal.

Medication, supplements and your own values

Your thyroid medication and your supplements are logged with their timing. TSH, T3, T4 and ferritin go in as your own measurements – so lab values and nutrition finally share one timeline. Sleep and workouts arrive automatically from Apple Health or Health Connect.

What it looks like in the app

Most frequent complaints in the statistics

What NutriSpy makes of it

"Why do you feel this way?" After five logged days, NutriSpy explains how you feel from your own data: which meals and habits go with your better and your worse days – across energy, digestion, sleep and weight.

Honest about the strength. Every pattern comes with an assessment of how solid it is. A hunch is labelled a hunch – so you don't rearrange your diet on a suspicion that never held.

For the doctor's appointment. Export your diary as PDF or CSV and take weeks of times, meals, nutrients and symptoms into the consultation.

Frequently asked questions

Which nutrients come up most often with Hashimoto?

The ones named most often are selenium, iodine, zinc, iron and ferritin, plus vitamin D and B12. NutriSpy carries them under every meal so you can see how much your food actually delivers. What follows from that for you – with iodine especially – is a conversation with your doctor; the app recommends no amounts.

Can I enter my lab values?

Yes. TSH, T3, T4, ferritin, iron, vitamin D and B12 go in as your own measurements whenever a result comes back. They then sit on the same timeline as your meals, your sleep and your weight – they are not interpreted, that stays with the result.

Can I log my thyroid medication?

Yes. Medication and supplements are logged with their times, thyroid medication as its own category. While you are being settled onto a dose, that leaves you with a record of what arrived when. NutriSpy suggests no dose and changes nothing about your treatment.

Does the diary replace a diagnosis?

No. A diary shows what goes together in your own data – it does not diagnose. NutriSpy never names a condition and never suggests a medication. What lies behind it is for your doctor; the diary is the basis for that conversation.

How quickly do I see results?

The explanation of your symptoms appears after five logged days, the explanation of your stool pattern after ten – and both sharpen with every further day. Missing days are treated as missing, not guessed.

What does NutriSpy cost?

Your diary is free, AI-assisted logging included. The insights, syncing into Apple Health or Health Connect and the export belong to Premium as a subscription. Current prices are shown in the app.

Start your food diary today

One sentence per meal, seconds per symptom – and the first connections from week one. For iOS and Android.

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NutriSpy is not a diagnostic tool and does not replace medical advice. For health concerns, please consult qualified healthcare professionals.