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Oceana Report: Vital Signs

For the past two years, Oceana's Grocery Store Campaign to get mercury warning signs posted at seafood counters has made huge strides.  Wild Oats began what was to become a nation-wide trend in 2005 by being the first company to make it a national policy of their stores to post the FDA advice about mercury in seafood.  Now, with five major companies with nearly 2,900 stores, Vital Signs: The Status of Mercury Warning Signs in U.S. Grocery Stores documents the growing trend of posting this important consumer health information. 

Executive summary (pdf)
Read the full report (pdf)
Press Release (doc)

Key Findings

Oceana has compiled a list of companies posting signs, known as the "Green List." It shows that Wild Oats, Safeway, Whole Foods, Trader Joe's and Albertsons voluntarily posted the FDA advice as a service to their customers. Wild Oats, the first company to post this advice, has found that posting signs has resulted in increased seafood sales and better customer relations.


  • Stores not posting the FDA warnings are unnecessarily exposing consumers to the undisclosed mercury risk. This includes Wal-Mart, CostCo, Giant Eagle, Publix and many others. These stores have been compiled by Oceana onto a "Red List."
  • California mandates that grocery stores post mercury warning signs because of Proposition 65. Therefore we believe that most California stores are posting signs. For the purposes of comparison, this report also estimates the number of stores within California whose companies have a nationwide policy of voluntarily posting the FDA advice, as we did for each of the other states.
  • Nearly three-fourths of the stores in Hawaii, Washington, D.C. and Alaska post the FDA mercury advice on signs at the seafood counter. These states received an "A" grade.
  • So few states had high percentages of Green List stores that the whole nation had to be graded on a curve. Shoppers in Nebraska, Wisconsin and Virginia have close to a one in ten chance of finding the mercury warning signs at their grocers but, because of the curve, these states earn a "C" grade.
  • Thirty of the 50 states had less than one in four stores posting signs with information on mercury in seafood, and a few states (West Virginia, Mississippi and Alabama) do not have a single store posting signs with the FDA mercury advice. Shoppers in these states are the least likely to be informed about the mercury problem. These states and others take home an "F" on their report card, since stores are not taking this simple measure to protect their customers' health.

Southeastern States Rank Worst at Posting FDA Advice

Green List Green List

State Summaries

Georgia (pdf)

Louisiana (pdf)

West Virginia (pdf)