Other exposures
Are cadmium, lead, arsenic, or mercury found in seaweed?
The draft corpus cites an EFSA 2023 opinion on seaweed (doi:10.2903/j.efsa.2023.7798) and does not mark the occurrence claim as checked against a saved file. No seaweed concentration is stated. The DOI is recorded so the gap is visible.
What is not available
Occurrence values from that opinion were not verified here.
Related evidence, where it exists, is on the linked pages. Those pages do not fill this gap.
Sources
Heavy Metal Index
Heavy Metal Index: seaweed and kelp foods. This Heavy Metal Index URL returned HTTP 200 on 15 October 2026. Figures on this page are not copied from that index. They come from the sources named above.
What's safe to buy
The Heavy Metal Tested and Certified public register listed no licensees on 15 October 2026. That page reported 0 certified brands and 0 certified products, and it stated that no brand has completed the three-lot baseline. A specimen layout on the register is an illustration, not a licensee. This page does not name or rank any brand.
The program states that certification is a measurement of a product against a published limit, not a statement that the product is safe. If a licensee is later listed for this category, it will be on the register.
This page summarizes cited documents. It does not diagnose or prescribe. Reviewed 15 October 2026.