The new edition of this well-established book bridges the gap between the scientific principles on which good nutrition is based and the day-to-day practice of 'healthy eating'. The basic chemical natures of the important food groups are outlined together with the changes which occur when food is cooked, processed and eaten. The relationship between good nutrition and good health is emphasised and accurate and up-to-date information is provided about this critically important topic. The new edition contains, amongst other new material, information about new Dietary Reference Values, an explanation of why, 'dietary fibre' should now be referred to as 'non-starch polysaccharides' and a new section on vegetarian diets. While principally intended for students of Food Science and Nutrition, Catering and Health subjects, this book will be of interest and value to all those concerned about improving their diet.