Editorial policy
Last reviewed: 19 October 2026
This page explains how the figures and guides on Free Fasting Calc are checked, and the rules they follow.
How figures are checked
AI tools check every figure on the site against its official source before a page goes live, and the date of each check is recorded. The sources are, in order of preference: health bodies and regulators, clinical guidelines, official medicine labels, official food composition data, and peer-reviewed studies, with human trials preferred over animal studies. Popular websites, forums and other fasting sites are never used as proof.
- If a figure can't be checked against an official source, it isn't published.
- If two official sources disagree, the figure is left out until it is settled.
- Figures that can change, such as medicine advice and guideline values, are checked again on a schedule, and before each month's new guides go out.
How health claims are phrased
- No page claims that fasting prevents, treats, cures or reverses any condition.
- Every health effect says how strong the evidence is: several human trials, some human trials, small or short studies, or only animal and lab studies.
- Where the evidence is unsettled, such as when autophagy starts in humans, the page says so.
- Pages say who a piece of advice may not suit, and when to talk to a doctor.
- No weight-loss projections or "results by a date".
Dates
Each guide shows when it was published and when it was last reviewed. A new review date means the page was checked again, not just touched.
Corrections
If you find an error, email contact@freefastingcalc.com with the page and what you think is wrong. We check it against the official source, correct the page, and record the date of the change. Mistakes in a calculator or a safety figure are fixed first.
Independence
Free Fasting Calc is free and shows no advertising. It sells nothing, takes no payment for coverage and has no affiliate links. If that ever changes, the pages affected will say so clearly.