"Portion Perfection for Bariatrics: International Version" by Amanda Clark is a textbook focusing on health and fitness, specifically in the field of medical nutrition. Published in 2022 by Great Ideas in Nutrition, this trade paperback book is written in English and spans 128 pages. Designed for adult education and further education levels, the book covers topics related to nutrition and general health. It offers valuable insights and guidance aimed at individuals looking to achieve portion perfection for bariatric purposes.