The study, published in the American Journal of Pathology, indicates mice fed diets high in fat and cholesterol developed twice as many tumors as mice that ate limited amounts of fat and cholesterol. The mice who ate “junk food” grew tumors that were 50% larger than those in their healthier friends.
One intriguing aspect of the study: the “Western diet” mice had lower blood cholesterol levels. Researchers state that this shows that cancer actually uses cholesterol to fuel its growth. Source: http://www.foodconsumer.org/