This document presents a student's complete response to the NUTR2005 Lifespan Nutrition Assessment 1 Part A workbook, which focuses on nutritional needs across the lifespan. The assignment includes four key activities. Activity 1 involves a nutritional assessment of a 35-year-old male, calculating his estimated energy requirements using the Schofield equation, comparing his anthropometric measurements and dietary intake to Australian guidelines, and providing an evidence-based assessment of his health status. Activity 2 explores nutrition in male and female preconception, focusing on the importance of iron supplementation for female fertility. Activity 3 examines nutrition in pregnancy, addressing the trimester of pregnancy, energy requirements, dietary recommendations, and supplement suggestions. Finally, Activity 4 analyzes a childhood nutrition case scenario, assessing a 1-year-old's growth using a WHO chart and providing dietary recommendations for her parents. The student provides detailed calculations, comparisons, and evidence-based recommendations throughout the workbook.