The consumption of animal fat appears to increase the growth of gut bacteria that turn our bile acids into carcinogens.
It can stimulate the synthesis and secretion of bile acids into the intestine.
Bile helps the body digest fats.
So more fat in the intestines means more bile in the intestines – which wouldn’t be a problem except bile acids – especially secondary bile acids – have long been suspected as being carcinogenic.
Bile acids stimulate the growth of bacteria – which convert the primary bile acids our livers make into secondary bile acids.
And secondary bile acids have been shown to be cancer-causing.
As described in my video below this could help explain why fat-rich diets are correlated with colon cancer.
High saturated fat intake is associated with elevated levels of bile – which is what you tend to see in people with colon cancer.
As such they are considered tumor-producing factors in colorectal cancer development and perhaps also breast cancer – as these secondary bile acids can get absorbed into the blood stream and circulate throughout the body.