Hypertension, or high blood pressure, is a condition that affects millions worldwide and significantly increases the risk of cardiovascular disease, kidney failure, and stroke. While medications are often prescribed to control hypertension, lifestyle changes, particularly dietary modifications, are critical in preventing and managing the condition. Among these, the Dietary Approaches to Stop Hypertension (DASH) diet stands out as a scientifically validated and highly effective approach. This comprehensive guide explores the DASH diet, how it works, its benefits, and its role in hypertension management, supported by research and practical strategies for implementation.