Colin Campbell research brings to light how our food choices regulate how our genes express themselves. It seems the combination of animal and dairy foods moves us closer to the potential to develop chronic illnesses. The China Study demonstrated that consuming casein (dairy protein) has the strongest potential to cause cancer than red meat.
When we eat a whole-foods, plant-based diet, we are getting protein directly from nature. This means that plant protein creates the healthiest and strongest bones. On the other hand, when we eat meat, we receive second-hand protein as well as the toxic waste produced by the animal through processing the protein. Last, when we eat dairy foods, we receive third-hand protein, as the food went through another stage of processing in the animal. Also not only that, but the commercial conditions in which most animals are raised increases the amount of toxicity.