Overview

Metal pages are the reference layer for each element the wiki tracks: what it is, how it enters the food and product supply, the toxicology that makes it a concern, the populations most vulnerable to it, and the regulatory limits that govern it. They link outward to the ingredients that carry the metal, the products it ends up in, the regulations that set limits, and the testing methods used to measure it.

Arsenic, mercury, chromium, and tin are maintained as separate species pages because the toxicology and regulation of the species diverge sharply: inorganic versus total arsenic, methylmercury versus total mercury, hexavalent versus total chromium, and organotin versus inorganic tin can differ by two to three orders of magnitude in derived oral guidance, and a total-element measurement without speciation cannot be honestly mapped to a toxicity-based limit. Lead, arsenic, cadmium, mercury, nickel, aluminium, chromium, and tin are covered most fully; nutrient elements such as manganese and zinc are included where they appear in risk-assessment sources. Begin at a metal page when a question starts with the contaminant itself; the Ingredients and Products layers carry the occurrence evidence and link back here for the underlying toxicology and limits.

Metal pages

The elements below are grouped by priority; each links to its full reference page.