Sodium intake refers to the amount or quantity of sodium that an individual consumes through their diet. Sodium is a mineral that plays several important roles in the body, including regulating fluid balance and maintaining proper nerve function. However, excessive sodium consumption can lead to high blood pressure (hypertension) and other health problems. Therefore, it's essential for individuals to monitor their sodium intake and ensure they consume an appropriate amount of this mineral through a balanced diet or by limiting the use of salt in cooking and at the table.