Nothing. Histamine Checker is a static website. The calculator runs entirely in your browser — the foods you tick never leave your device and are never sent to a server, because there is no server collecting them.
This site uses Google Analytics 4 (GA4) to understand anonymous, aggregated usage — which pages are visited, in what country, on what kind of device, and in what rough numbers. GA4 does not identify you as a person, and it never sees the foods you tick: that input stays entirely in your browser and is never uploaded. We run analytics only to see whether the tool is useful, not to track individuals.
This site links to external resources (e.g. the SIGHI list, research summaries). Those sites have their own privacy practices, which we do not control.
Questions? See our Contact page.
The calculator itself sets no advertising or tracking cookies of its own. Your selections, sensitivity, and freshness choices are saved only in your browser's local storage so the page remembers them on your next visit; that data never leaves your device and you can clear it anytime from your browser settings.
Because we do not collect personal data from you, there is nothing of yours for us to delete or export. If you have asked Google Analytics to exclude your own traffic, that choice is respected by their tool. For anything else, our Contact page is open.
This site is not directed at children, and we do not knowingly collect information from anyone under 13. The tool is intended for adults managing their own diet.
If our practices change — for example, if advertising is added — we will update this page before the change takes effect and note the date below. The version you are reading reflects the site as it stands today.
Because the calculator runs in your browser, we never receive your food selections, your sensitivity setting, or your freshness choice. Google Analytics sees only that a page was loaded and rough, anonymous aggregates — never the contents of your calculation.
Questions about this policy? Write to us on the Contact page. If a future change affects you, the date at the bottom of this page records when it took effect.
Apart from Google Analytics (described above) and the reference links we cite, this site loads no other third-party scripts. There are no ad networks, no social trackers, and no pixel tags running in the background.
If you want a specific correction to this page or have a privacy question, the Contact page is the shortest path. We answer human questions with human replies, not automated form responses.
© 2026 Histamine Checker. A self-help tool for personal awareness — not a medical service. Food ratings are based on the SIGHI food compatibility list.