Cancer diseases are among the biggest health problems in our society today: one in four people is affected. Since there is currently no guaranteed cure, prevention is particularly important. In addition to a positive attitude towards life and sufficient exercise, a health-conscious diet is one of the most effective measures for cancer prevention. What is cancer, actually? What are the risk factors? What therapies are available? What opportunities does an anti-cancer diet offer? How do the ingredients in food affect the body?.