Which dietary modification is essential for a patient with heart failure?

Limiting fluid intake is essential for a patient with heart failure because excessive fluid can lead to fluid overload, which places additional strain on the heart. In heart failure, the heart's ability to pump effectively is compromised, often resulting in symptoms such as swelling (edema), shortness of breath, and fatigue due to fluid accumulation in the lungs and tissues.

By restricting fluid intake, patients can help manage these symptoms and reduce the risk of hospitalization. This dietary modification is a critical part of heart failure management aimed at improving quality of life and preventing complications associated with volume overload.

In contrast, increasing sodium intake could exacerbate fluid retention, while reducing carbohydrates and increasing protein consumption are not typically central dietary modifications for heart failure management. Heart failure patients are usually advised to adhere to a low-sodium diet to help prevent fluid retention and manage their condition effectively.