Theoretically, cancer cells can die when they are deprived of nutrients, but this is not feasible for the human body.
Cancer tissues are rich in blood vessels, and in the process of growth, they need to take nutrients from the human body for their own growth, while normal cells and tissues in the human body also need nutrients. However, it is not feasible to starve the cancer cells to death by not eating, because it is not the cancer cells but the normal tissues and cells of the human body that will be the first to die in the process of not eating.
If you want to kill the cancer cells, you can treat them through radiotherapy, chemotherapy, etc. If you have surgical indications, you can also remove the tumor through surgery to achieve the curative purpose.