where the numbers come from
sources and methodology
Guidance draws on publicly available information from national and international bodies, including UK gov.uk preparedness guidance, the Red Cross and Red Crescent, and FEMA. The specific food suggestions on the checklist follow nutrition guidance from the British Nutrition Foundation, reported by BBC News in September 2026. Durations and quantities are deliberately realistic rather than worst-case. Official guidance for your own region is updated more often than this site, so check it too.
design
Type is Archivo, an open-source typeface released under the SIL Open Font License and served from this site. Diagrams are drawn for this site from its own figures. The site uses no stock photographs or illustrations. No cookies: page views are counted anonymously. Some product links may earn a small commission, and pages with product links say so.