The book "Effects of Spirulina in Treating Malnutrition" by Mahmoud Al Shaikhali provides a comprehensive examination of the effectiveness of Spirulina as a treatment method for malnutrition in children in the Gaza Strip. The study includes a sample of 60 undernourished children aged 1 to 4 years and analyzes the effects of Spirulina on their health status. The results show significant improvements in the weight gains of children who received Spirulina compared to those who only received vitamins and minerals. The analysis of Spirulina's ingredients highlights its high content of proteins, fats, and carbohydrates, making it a valuable and cost-effective supplement in the fight against malnutrition. The book is aimed at professionals in the fields of medicine and nursing and provides valuable insights for the treatment of malnutrition.