A nutrition and cancer expert has spotlighted 'superfoods' that he believes are essential for living a long, healthy life - even up to 110 years. Dr Valter Longo, a specialist in nutrition and cancer, has detailed how a nutrient-rich diet combined with controlled fasting can play a pivotal role in warding off serious illnesses and health conditions. He also suggested that eating the right foods could reduce the likelihood of developing cancer and aid in its treatment if it does occur. Dr Longo