Animal products are linked to heart disease and cancer from "summary" of The Healthiest Diet on the Planet by Dr. John McDougall
Animal products, such as meat, dairy, and eggs, have long been staples in the Western diet. However, research has shown a clear link between the consumption of these foods and the development of chronic diseases like heart disease and cancer. These associations are not mere coincidences, but rather the result of the harmful effects that animal products can have on our bodies. One way in which animal products contribute to heart disease is through their high content of saturated fat and cholesterol. These substances can raise levels of LDL cholesterol, also known as "bad" cholesterol, in the blood. High levels of LDL cholesterol are a major risk factor for heart disease, as they can lead to the buildup of plaque in the arteries, narrowing them and restricting blood flow to the heart. In addition to their effects on cholesterol levels, animal products can also contribute to heart disease through their high protein content. Animal proteins have been shown to increase levels of a hormone called insulin-like growth factor 1 (IGF-1), which has been linked to an increased risk of heart disease. Furthermore, the high levels of iron in animal products can cause oxidative stress in the body, leading to inflammation and damage to the arteries. When it comes to cancer, animal products have also been implicated as risk factors. For example, red and processed meats have been classified as Group 1 carcinogens by the World Health Organization, meaning that there is strong evidence linking their consumption to an increased risk of cancer. This is thought to be due to the presence of substances like heme iron and heterocyclic amines, which can damage DNA and increase the risk of mutations that lead to cancer. Dairy products, particularly milk, have also been linked to an increased risk of certain types of cancer, such as prostate and breast cancer. One potential explanation for this is the presence of hormones like estrogen and insulin-like growth factor 1 in dairy products, which can stimulate the growth of cancer cells.- The evidence linking animal products to heart disease and cancer is strong and consistent. By reducing or eliminating these foods from our diets, we can significantly reduce our risk of developing these chronic diseases and improve our overall health and well-being.
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