Evidence summaries on fasting and metabolic health

fasting.com

Cited guides to fasting basics, intermittent fasting, water-only fasting, and the fasting-mimicking diet.

Effective date: 11 October 2026.

This policy explains what information fasting.com collects, how it is used, and how to contact us about it. fasting.com is an informational site: there are no accounts, sign-ups, forms, comments, or newsletter.

Information we collect

fasting.com uses Google Analytics, a Google measurement service. Google Analytics runs only if you accept it in the cookie banner; see "Your cookie choice" below for what happens before you choose and how to change your choice. When it runs, Google Analytics sets cookies, such as those starting with _ga, that collect information including which pages you viewed, how long you spent on a page, the site that referred you, your device and browser type, and an approximate location based on your IP address.

Google Analytics is also set to record some interactions on this site automatically: scrolling, clicks on links that take you to another site, file downloads, and page changes. The same setting can record form interactions and embedded video plays, and is set to detect email addresses, phone numbers, and postal addresses typed into forms and send them to Google in hashed form. fasting.com has no forms and no embedded videos, so none of that happens here.

Google Signals is turned on for this site and applies to your visits if you accept. If you are signed in to a Google account with ad personalization turned on, Google can associate the data described above with your account and link it across your devices. Our Analytics reports can then include aggregated demographics and interests information about visitors as a group, provided by Google.

If you accept, your browser also sends requests, typically once at the start of a visit, to a Google advertising domain, stats.g.doubleclick.net, carrying the same analytics identifier used by Google Analytics.

This data is processed by Google. You can read Google's own explanation of how it uses this information at policies.google.com/technologies/partner-sites.

How long this data is kept follows the retention settings on our Google Analytics account.

You can limit this tracking. In your Google account's ad settings, at myadcenter.google.com, you can turn off ad personalization; Google Signals then no longer applies to your visits. You can opt out of Google Analytics across sites using Google's browser add-on. You can also block or clear cookies in your browser's settings.

Server logs

Like most websites, the web host that serves fasting.com keeps standard server logs for security and operational purposes. These logs can include your IP address, browser type, the pages you requested, and the time of your request.

Fonts and images

Fonts and images on fasting.com are served from fasting.com itself, not from an external font or image service.

Links to other sites

Some pages about the fasting-mimicking diet include one link to prolonlife.com, labelled as a commercial link. If you follow that link, or any other link away from fasting.com, you are subject to that site's own privacy policy, not this one.

Your rights and choices

You can ask what information relates to you, ask us to delete or correct it, or object to how it is used, by emailing privacy@fasting.com.

Depending on where you live, you may have additional legal rights over your information, for example under laws in the EU, UK, or California.

Children's privacy

fasting.com is not directed at children under 13, or under 16 where local law sets a higher age, and we do not knowingly collect information from children.

Contact us

For any question about this policy or your information, email privacy@fasting.com, or use this link: privacy@fasting.com.

Changes to this policy

If this policy changes, we will update the effective date at the top of this page.