MISINFORMATION about nutrition and cancer is rife and can have devastating consequences for people with cancer. It is understandable that a person diagnosed with cancer would consider trying anything that might help make them better and give them a greater sense of control. However extreme ‘cancer diets’ can be harmful. Some of the common diet myths include: • Whether it be an alkaline diet, a vegan diet or juice diet — remember there is no proof that diet can treat or cure cancer. These diets can be restrictive and can result in nutrient deficiencies. • Cutting out sugar and carbohydrates to ‘starve the tumour’ — this idea oversimplifies a complicated process. All cells in the body use a type of sugar called glucose as a source of fuel. As cancer cells divide more rapidly than normal cells they use more glucose. However the body tightly regulates the glucose level in the blood and there is no scientific evidence that cutting out sugar or carbohydrate foods starves a tumour of glucose. • High doses of supplements — high-dose anti-oxidant supplements may interact with cancer treatments and drugs so are not recommended.