The content of this book arises from the Equine NUtrition COnference - Practice (ENUCO) 2007. The purpose of the conference is to supply scientifically validated practical hints and state of the art knowledge on equine nutrition and training. The topics dealt with in this publication are: - News on equine nutrition, training and medicine (2005-06). - Noteworthy changes to the Horse Nutrition Requirements by the National Research Council of USA. - Relevance and standardization of the terms Glycaemic Index and Glycaemic Response. - The role of nutrition in colic. - The use of herbs in the management of hyperadrenocorticism and other hormonal diseases of horses. - Diagnosis and management of insulin resistance and equine metabolic syndrome (EMS) in horses. - Food-allergy in horses.