So how is dietary protein related to cancer? We know about the relationship between foods and cancers primarily by epidemiological studies– studies that are done all over the world– and one of the remarkable relationships that have come out of these kinds of studies is a direct relationship between cancers and the consumption of dietary fat.
The cancers that are affected are cancers of the colon, the prostate, and the breast. These are 3 cancers that are influenced by the amount of fat we eat. The relationship between fat and cancers could be related to fat intake, but it could also be related to protein.
The major source of fat in the adult diet is protein, and it;s animal protein that we eat. it’s because of these relationships that people have begun to delve more deeply into the relationship between animal protein and cancer.
Cancers are also related to obesity. Instead of eating the fat, we carry the fat on our body. These kinds of cancers are usually related to esophageal, pancreatic, colon and breast cancer. Many other kinds of cancers, particularly of the abdomen area, are directly related to obesity.
We know there is a direct relationship between the amount of fat and the amount of protein eaten. The greater amount of protein you eat, the greater the fat– therefore, this relationship could very well be related to animal protein rather than animal fat.
Our body actually reacts to animal protein by releasing bile, which is necessary for the absorption of fat.
So, the less fat you eat, the less bile you produce.
Bile is a carcinogen. The more fat you eat, the more carcinogen that we make, and our body has to deal with it— so the more meat we consume, the greater risk of cancer– especially colon cancer, which is where the bile is playing a role.
The pivotal question—is there anything we can do about cancer by what we eat??
Well, the key to this answer was generated by a very famous nutrition biochemist by the name of Clive McCay.
He was not only a great biochemist, he was a chef! He invented an a bread that is extremely rich in vitamins and minerals– and then he experimented!
What he did was feed rats half the ration they normally eat. So he has a control group. The rats eat all they want. The other group gets only half as much. What’s important about this is that he doubled their lifespan. DOUBLED IT!!
The reason this happened is the major cause of death in old animals that have a surfeit of food all around them is tumor growth. Both cancerous and non cancerous tumor growth– and what he found is by reducing the amount of food they ate, the development of cancer in these cells is reduced. These cells have a very high metabolic rate and demand high calorie intake, and by restricting the amount of calories, you restrict this whole process from occurring!
Dr. McCay’s biological explanation:
Because cancer cells grow and divide rapidly, they metabolize a lot of calories, so restricting caloric intake restricts the growth of cancer cells.