Heart failure is a complex and chronic condition that requires more than medication to manage effectively. Nutrition plays a vital role in shaping patient outcomes, and for many individuals, adopting a dedicated heart failure diet can significantly improve quality of life, reduce hospitalizations, and enhance overall cardiovascular function. By carefully adjusting one’s eating habits, patients can support heart health, reduce fluid retention, and prevent the worsening of symptoms such as shortness of breath, fatigue, and swelling. The integration of nutrient-dense, low-sodium, heart-supportive foods is not a supplementary measure—it is foundational to long-term cardiac care. As we explore the science behind heart-healthy eating, this guide offers expert insights and a practical, comprehensive approach to building a diet tailored to the unique needs of individuals living with heart failure.