If you check wikepia, it states that the pigs have no effective "sweat glands". That is why pigs bathe and wattle in mud to keep cool. ANY HEALTH SCIENTIST will tell you in humans, probably the major excretory organ is the skin (via the sweat glands) along with the kidneys and intestine.
So all the toxins and rubbish accumulate in the pork that we eat as pigs have no effective sweat glands.
Click here: wiki.answers
Click here: Squidoo answers
