A vegetarian diet, by reason of its low content of saturated fatty acids, cholesterol, and animal proteins, and its high concentrations of folic acid… - Umberto Veronesi

Fruit and vegetables, instead, are foods extremely low in fats and high in fiber: by easing the passage of ingested food, they reduce the time of contact between possible carcinogens—present in our daily diet—with the walls of the intestines.

We have to consider that the foods we ingest let a certain amount of soluble toxic substances dispersed in the environment into our bodies. These polluting substances are harmful if we breathe them in, but they are even more so if we ingest them. By consuming meat, we put ourselves precisely in that position, because such substances in the atmosphere fall back to Earth, and hence, onto the grass that, when eaten by cattle, introduces harmful substances into their adipose deposits and therefore into their flesh, and finally, onto our plates.

We have reached the conclusion that what we eat is responsible for a large number of tumors, and that certain foods trigger cancer while others have a protective value. Meat and its derivatives figure among carcinogenic foods of the intestines. Meat, in fact, is particularly rich in saturated fatty acids, substances that lead to damaging activity in regard to our bodies in general. Furthermore, certain forms of tumors, such as intestinal cancer, are directly correlated to the consumption of meat, while others, such as endometrial tumors, are linked to obesity.