Dangerous environmental pollutants called polychlorinated biphenyls (PCBs) were the first industrial compounds to experience a worldwide ban on production more than 30 years ago because of their potent toxicity. However, they are very persistent and therefore still present in our environment. Once in the body, PCBs accumulate in the fat tissue and can cause long-term problems such as reduced infection fighting ability, mental and behavioural problems, decreased activity of the thyroid, reproductive problems, can induce cancer and severely damage the development of a baby. A review published in the journal Environmental Medicine revealed that in the food chain fish, dairy, hamburgers and poultry are the most contaminated foods. It also suggested that not only can you avoid these dangerous substances by avoiding the above mentioned foods but you can also help your body get rid of the toxins by eating green vegetables, rice bran, and drinking white and green teas.
Crinnion, W.J., 2011. Polychlorinated biphenyls: persistent pollutants with immunological, neurological, and endocrinological consequences. Alternative Medicine Review: a journal of clinical therapeutic. 16 (1) 5-13.