From
the Iowa Department of Natural Resources and the Iowa Department of Public
Health
1. Fish Are Part of a Healthy
Diet.
Fish are low in saturated fat and contain protein, calcium,
iron, zinc and many vitamins. Eating fish can contribute to a healthy heart,
the prevention of diseases and a child’s proper growth. The Iowa Dept. of
Public Health recommends eating two meals of fish per week.
2. Iowa-Caught Fish Are Safe
to Eat, In Almost All Cases.
Some people have concerns about whether fish are safe to eat
because of chemicals that may be present. Chemicals in the water can occur
naturally or because of human impacts such as industrial pollution. The vast
majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish
that pose little or no threat to human health if consumed.
3. Iowa DNR Tests for
Chemicals Regularly.
The Iowa Dept. of Natural Resources (DNR), in cooperation with
U.S. EPA, annually tests for chemicals in samples of fish from selected lakes
and rivers in Iowa. In the rare cases when chemical levels are found to be
elevated, fish consumption advisories are issued according to protocol
developed by the Iowa Dept. of Public Health.
4. Advisories Are Limited to
Specific Water Bodies.
Of the thousands of miles of rivers/streams, along with hundreds
of lakes in Iowa, only a small handful currently has consumption advisories.
Advisories are printed in the DNR annual fishing regulations, or can be viewed
at the DNR website.
5. Advisories Suggest Limits,
Not Elimination.
Even where safety advisories occur, it does not mean all fish
should be avoided. Instead, advisories will either recommend limiting fish
consumption to one meal per week, or to avoid eating certain types of
fish from that specific location. Despite these warnings, the Dept. of
Public Health recommends eating fish from a variety of sources to achieve the
most health benefits. In fact, Iowa’s safety advisories offer stricter
consumption guidelines than those placed on fish purchased from grocery stores
and restaurants.
6. Pan Fish are Different
from Predator and Bottom-Feeding Fish.
Chemical concentrations, if present, tend to be higher in
bottom-feeding fish such as catfish or carp. Mercury, if present, tends to be
higher in predator fish such as walleye, bass and northern pike. Consumption
advisories typically focus on these species. Pan fish such as crappie
and bluegill carry virtually no risk.
7. If You Are Pregnant,
Planning to Become Pregnant, Nursing, or Under Age 12, Special Cautions Apply.
For Iowa-caught fish, people in these categories should limit
their consumption of predator fish (walleye, bass, etc.) to one meal per week.
They should also limit or eliminate the consumption of several grocery-store
fish offerings such as tuna, shark and swordfish. For more information on
health issues regarding fish consumption, visit the Iowa Dept. of Public
Health’s Web site at www.idph.state.ia.us.
