Nutritional Extremes and the Paediatric Heart: A Critical Narrative Review of Deficiency Cardiomyopathy and Obesity-Related Cardiac Remodelling - Ashraf Soliman; Anas AbdulKayoum; Mohanad M. A L-Qadi; Fawzia Alyafei; Shayma Ahmed; Consultant Noora AlHumaidi; Nada Alaaraj; Noor Hamed (Journal of Advances in Medicine and Medical Research, 2026)