Balanced Diet Plan for Old Age People Ageing is not a disease but a biological process. Good nutrition may slow the ageing process so that the individual can enjoy physical and mental vigor in his sixties. The process of ageing brings about physiological, immunological changes which affect the nutritional requirements of the elder people. Diet which is low in saturated fats, animal- based proteins and simple carbohydrates is suitable for old persons. Ageing leads to diseases like osteoporosis, cardiovascular diseases