Is It Safe to Eat Saltwater Fish?
Consumption Guidelines for Ocean Fish and Shellfish
Fish can be an important part of a healthy diet, but some ocean fish and shellfish contain varying levels of pollutants like mercury, PCBs and dioxins and may pose a potential health risk. Because of this, the NH Department of Environmental Services recommends the following guidelines for eating Saltwater Fish, Shellfish and Commercially Available Fish:
BEST CHOICES: Catfish, Cod, Flounder, Haddock, Herring, Light Tuna (canned), Pollock, Sole, Salmon, Tilapia, Shellfish (Oysters, Shrimp, Crab, Clams, Scallops, Lobster)
- Pregnant and nursing women, women who may become pregnant, and young children can safely eat TWO meals* per week.
- For all others, no limit as part of a balanced diet.
GOOD CHOICES: Halibut, Red Snapper, Tuna Steak, White Tuna (canned)
- Pregnant and nursing women, women who may become pregnant, and young children can safely eat ONE meal per week.
- For all others, no limit as part of a balanced diet.
CAUTIONS: Bluefish, Striped Bass
- Pregnant and nursing women, women who may become pregnant, and young children should avoid consumption.
- For all others, eat no more than ONE meal per month.
King Mackerel, Swordfish, Shark, Tilefish
- Pregnant and nursing women, women who may become pregnant, and young children should avoid consumption.
- For all others, TWO meals per month.
Lobster Tomalley (green substance in lobster)
- Everyone avoid consumption (p. 4-22)
Other parts of the lobster are fine -- no limits as part of a balanced diet.
All dietary sources of fish should be considered together. For example, a pregnant woman may have one meal of freshwater fish, but is advised not to consume any additional mercury-containing fish that month.
*Remember: "meal sizes" are 4 oz. for children under age 7, and 8 oz. for older children and adults.
To find more information regarding the health effects of mercury or details on specific advisories, contact:
NH Department of Environmental Services
Environmental Health Program
(603) 271-1370