Lemons provide systemic nutritional and physiological benefits that primarily support the kidneys, liver, and digestive tract. Rich in citric acid, regular consumption of lemon water can help prevent the formation of certain types of kidney stones by increasing urinary citrate levels. Additionally, the high concentration of vitamin C and antioxidant compounds in lemons supports liver detoxification pathways, aids immune function, and promotes healthy iron absorption within the gastrointestinal tract, contributing to overall metabolic well-being.