Dr. Bray Links

Monday, May 2, 2016

PCBs cause erectile dysfunction and low testosterone


There is a long list of PCBs that persist in the environment and in most animal food (learn more at the EPA). PCBs can have both estrogen activity as well as testosterone-blocking activity. Foods with particularly high levels of PCBs are fish oil, fish, cows milk, milk-products, and eggs. Low quality fish, with some of the highest levels of PCBs are used in the feed for chickens.

Animal products are not inherently problematic, which is why our great-grandparents could eat animal products without as many health consequences. Now, animal products with these PCBs and dioxins are causing breast cancer, prostate cancer, problems with menstruation, fibroids, endometriosis, female infertility, male infertility, low testosterone and erectile dysfunction. Given the testosterone lowering effects of PCBs, they could also be implicated in heart disease (which is higher in men with low testosterone).


Endocrine-disrupting industrial toxins in the aquatic food chain may affect genital development of boys and sexual function in men.


Sex steroid hormones in meat, eggs, and dairy may help explain the link between saturated fat intake and declining sperm counts.

The top three sources of industrial toxins in the diet are fish oil, fish, and eggs.

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