Nutritional deficiencies in staple crops like rice, wheat, and maize pose critical challenges to global food security and public health. Addressing these issues requires a deep understanding of the genetic factors influencing nutrient composition and bioavailability. This chapter delves into forward genetic approaches aimed at identifying genes that control nutrition in staple crops. Traditionally, forward genetics has relied on mutagenesis and phenotypic screening, but recent advancements in molecular biology have enabled more precise and efficient gene identification. We discuss a range of strategies, including mapping populations, quantitative trait locus (QTL) analysis, and mutant libraries, that have been effective in uncovering genes associated with nutritional traits. Furthermore, the chapter explores the integration of high-throughput sequencing, CRISPR-Cas9, and other emerging technologies, which are revolutionizing gene discovery and functional validation in plants. These cutting-edge innovations offer new opportunities for accelerating the breeding of crops with improved nutritional profiles. By leveraging forward genetic approaches, researchers can make substantial progress in enhancing the nutritional quality of staple crops, contributing to better health outcomes and greater food security worldwide. This chapter provides a comprehensive overview of these methods, highlighting their potential to transform staple crop nutrition and address pressing global challenges.