Digestible nutrients and available (ATP) energy contents of two varieties of kiwifruit (Actinidia deliciosa and Actinidia chinensis)

► Available energy of food is that delivered to cells and available for metabolic processes. ► Available energy may be a more accurate measure than metabolisable energy. ► The available energy of kiwifruit was determined using an in vivo-in vitro model. ► Available energy and metabolisable energy rank energy supply from a food differently. ► Low available energy content of kiwifruit makes it an ideal weight loss food.