Dementia is a progressive, chronic condition affecting cognitive functioning and is most prevalent in people aged over 65. Weight loss, malnutrition and dehydration are common in people living with dementia and can occur at any stage of the condition. Malnutrition can have devastating consequences on quality of life and clinical outcomes and significantly increases the risk of morbidity and mortality. Dementia affects a person’s ability and desire to eat and drink to meet their nutritional requirements. This article identifies problems associated with nutritional status in people living with dementia and outlines the effectiveness of interventions to counteract the negative effects on nutritional status.