Historically speaking what came first cancer or mass produced conventional food? Neither, they came simultaneously. Conventional food is genetically engineered to grow bigger, faster and more colorful. This allows the food corporations to profit more from production. One third of the population will get cancer because our bodies are doing exactly what has been done to the food that we eat. This is simply that the cells are reproducing faster than normal. We are what we eat. And by becoming a vegetarian and eating local organic food you will greatly reduce the risk.