Dr Sean A Virani MD FCCS, Cardiologist , UBC
Key points:
- The heart is still working, but less effectively.
- Blood flow to organs and tissues may be reduced.
- Fluid can build up in the lungs and body, causing congestion.
- Heart failure is usually a long-term condition that can often be managed with medications, lifestyle changes, and other treatments.
If you’d like, I can also explain the different types of heart failure (such as reduced ejection fraction vs. preserved ejection fraction) in simple terms.
Heart failure is a chronic condition in which the heart cannot pump enough blood to meet the body’s needs efficiently. It does not mean that the heart has stopped beating. Instead, the heart’s pumping ability is weakened or impaired, causing blood and fluid to accumulate (congestion) in the lungs, legs, abdomen, and other tissues. This can lead to symptoms such as shortness of breath, fatigue, and swelling.
Dr Sean A Virani MD FCCS, Cardiologist , UBC
Heart failure is a chronic condition in which the heart muscle cannot pump blood effectively enough to meet the body’s needs. It does not mean the heart has stopped beating. Instead, the heart becomes too weak or too stiff to pump efficiently, causing blood and fluid to back up (congestion) in the lungs and other body tissues. This can lead to symptoms such as shortness of breath, fatigue, and swelling in the legs, ankles, or abdomen.
Bottom Line
Nutrition helps heart failure by reducing fluid retention, lowering blood pressure, supporting healthy body weight, maintaining muscle mass, and providing nutrients that support overall heart function. Dietary recommendations should be individualized, so people with heart failure often benefit from working with a cardiologist and a registered dietitian to create a plan that matches their specific condition and medications.
Dr Sean A Virani MD FCCS, Cardiologist , UBC
Dr Sean A Virani MD FCCS, Cardiologist , UBC
Dr Sean A Virani MD FCCS, Cardiologist , UBC
Cardiologist, University of British Columbia
2. Managing Fluid Intake
Some people with heart failure need to limit how much fluid they drink each day. This helps prevent fluid overload, which can increase the heart’s workload and lead to symptoms such as swelling and breathing difficulties.
3. Supporting a Healthy Weight
Good nutrition helps maintain an appropriate body weight:
- Excess weight makes the heart work harder.
- Unintentional weight loss and muscle wasting can occur in advanced heart failure and are associated with poorer outcomes.
A balanced diet helps preserve muscle mass and energy levels.
Nutrition plays an important role in managing heart failure because it can reduce symptoms, help prevent complications, and improve quality of life. Heart failure occurs when the heart cannot pump blood as effectively as it should, causing fluid buildup and increased strain on the heart.
Key ways nutrition helps include:
1. Limiting Sodium (Salt)
Too much sodium causes the body to retain water, which can worsen:
- Swelling in the legs, ankles, and abdomen
- Shortness of breath
- High blood pressure
Many people with heart failure are advised to limit sodium intake, often to around 1,500–2,000 mg per day, though recommendations vary based on individual circumstances.
Cardiologist, University of British Columbia
4. Providing Essential Nutrients
Heart-healthy eating patterns emphasize:
- Fruits and vegetables
- Whole grains
- Lean proteins (fish, poultry, beans, lentils)
- Healthy fats (nuts, seeds, olive oil)
These foods provide vitamins, minerals, fiber, and antioxidants that support cardiovascular health.
Cardiologist, University of British Columbia
5. Controlling Other Conditions
Nutrition can help manage conditions that often accompany heart failure, such as:
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Obesity
Improving these conditions can reduce stress on the heart.
Cardiologist, University of British Columbia
6. Preventing Malnutrition
Some people with heart failure experience reduced appetite, fatigue, or difficulty preparing meals. Adequate calorie and protein intake can help:
- Maintain strength
- Support immune function
- Reduce muscle loss