Final answer:
True, approximately one-third of all cancer cases have a relationship to dietary or lifestyle choices. By avoiding tobacco, maintaining a healthy diet, and regular physical activity, many cancer deaths can potentially be prevented.
Step-by-step explanation:
The statement that 1/3 of all types of cancer have an intake or behavioral association is true. Avoidable lifestyle choices, particularly smoking tobacco, consuming an unhealthy diet, and lacking physical exercise, are significant but preventable environmental risk factors for cancer. A substantial portion of cancer deaths could be prevented by adopting healthier lifestyle habits. For instance, quitting tobacco alone could prevent an estimated 25 percent of cancer deaths, while eating a balanced diet, exercising regularly, and maintaining a healthy weight could prevent another 35 percent of cancer-related deaths. Additionally, certain behaviors and consumption habits are implicated in specific cancer types, like colorectal cancer, which is linked to smoking, excessive alcohol consumption, and a diet high in animal fat and protein.