The study underscores the importance of considering the age of rice when evaluating its nutritional and chemical properties for various applications. The first research rice samples, with an age range of 3 to 6 months, were gathered from the Harir subdistrict. The proximate analysis results revealed nine distinct compounds, with vitamin C recording as the most abundant compound, ranging from 1693.5 ppm at 3 months of harvest age to 523 ppm at 6 months of harvest age. Antioxidant compounds came in second, with values ranging from 33.3 ppm at 3 months to 50.9 ppm at 6 months of storage. There were significant (p 0.05) differences in the amount of polyphenol content in rice at various ages. Among the discovered chemicals, chlorogenic acid had the greatest concentration (800.8 ppm) at a harvest age of 3 months. The rice samples included in this investigation contained 26 distinct fatty acid compounds; the most unsaturated fatty acids (33.51%) and least saturated fatty acids (65.7%) were found in rice at 3 months. Significantly more Na and Se were present in the rice at 3 months (97 and 12 ppm, respectively) than at 6 months (67 and 6 ppm). Our research supports the fact that rice samples from the Harir sub-district consist of phytoconstituents and their potential for use as functional foods and in the further development of natural health products.