NutritionFacts.org

PCBs

Industrial chemical carcinogens, such as PCBs, have been concentrating up the food chain for years and building up in animal fat. Many were banned in 1979 and fortunately have since been in decline in terms of daily intake levels. But one dietary source still remains a threat: fish and fish oil (see also here, here, here, here). Eggs may also be highly contaminated. Some PBCs act as xenoestrogens; they can have estrogenic effects and may adversely affect male sperm counts and may even be responsible for early onset puberty.

Topic summary contributed by Denise.
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Watch videos about PCBs

  • CDC Report on Environmental Chemical Exposure
    CDC Report on Environmental Chemical Exposure
    The latest national survey on the levels of chemical pollutants such as heavy metals, toxic solvents, endocrine-disrupters, flame-retardant chemicals, PCBs, and pesticides such as DDT in the bodies...
  • Fish Oil in Troubled Waters
    Fish Oil in Troubled Waters
    Major fish oil manufacturers and drug stores are being sued for failing to disclose the PCB pollutants in fish oil supplements.
  • Food Sources of PCB Chemical Pollutants
    Food Sources of PCB Chemical Pollutants
    The top three sources of industrial toxins in the diet are fish oil, fish, and eggs.
  • Is Distilled Fish Oil Toxin-Free?
    Is Distilled Fish Oil Toxin-Free?
    Researchers test molecularly distilled fish oil supplements for industrial pollutants.
  • Hair Testing for Mercury
    Hair Testing for Mercury
    Due to the state of the world's oceans, human biomarkers for fish consumption now include dioxins, PCBs, and mercury.
  • DDT in Fish Oil Supplements
    DDT in Fish Oil Supplements
    Though banned decades ago, the pesticide DDT persists in the food supply.
  • Xenoestrogens & Early Puberty
    Xenoestrogens & Early Puberty
    Until the twentieth century, the average age of puberty for girls was 16 or 17 years old.
  • Xenoestrogens & Sperm Counts
    Xenoestrogens & Sperm Counts
    Endocrine disrupting xenoestrogens in fish may be interfering with male fertility.
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