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Tests Find Hazardous Iodine Levels in Some Algae Foods as Consumer Groups Press for Mandatory Labels

Laboratory results showed wide iodine swings across products, with three typical portions already surpassing the safe daily limit.

Overview

  • Consumer centers reviewed labeling on 142 algae-containing foods and commissioned laboratory analyses of 19 items from retail and online sellers.
  • Iodine content ranged from 11 to 8,720 micrograms per 100 grams, reflecting variability by species, origin and environmental conditions.
  • Eight of 13 tested items reached levels that should trigger BfR warning statements, yet none displayed all recommended information.
  • Examples flagged include a rooibos tea with Kombu that reaches the 600‑microgram daily limit in 54 milliliters and two algae pastas with very high levels, including one with an incorrect iodine claim on the pack.
  • Advocates are seeking legally binding iodine declarations and maximum-portion guidance, citing EFSA’s 600 micrograms per day limit and urging consumers—especially those with thyroid disease—to rely on clear labels and follow serving advice.