Research shows that Ramadan fasting appears to be relatively safe for people with chronic heart failure when they receive proper medical supervision and continue taking their heart medications. A 2026 systematic review of seven clinical studies found that fasting during Ramadan did not increase hospitalizations, worsen heart failure symptoms, or raise death rates among heart failure patients. However, according to Gram Research analysis, patients should always consult their cardiologist before fasting and receive close medical monitoring throughout the fasting period.
A new systematic review examined whether Muslims with chronic heart failure can safely fast during Ramadan, the Islamic holy month when people abstain from food and drink from dawn to sunset. Researchers analyzed seven clinical studies and found that Ramadan fasting did not lead to more hospital visits, worsening heart condition, or higher death rates among heart failure patients who received proper medical care. According to Gram Research analysis, the findings suggest that fasting may be relatively safe for people with heart failure when they work closely with their doctors and continue taking their medications as prescribed. However, researchers note that more large-scale studies are needed to confirm these results.
Key Statistics
A 2026 systematic review published in Current Cardiology Reports analyzed seven clinical studies and found that Ramadan fasting was not associated with increased hospitalizations or higher mortality rates among chronic heart failure patients.
Research reviewed by Gram found that heart failure patients who fasted during Ramadan did not experience deterioration in clinical status when they maintained medical supervision and continued prescribed heart medications.
The systematic review included studies primarily from the Middle East and North Africa region, where researchers observed that Ramadan fasting appeared relatively safe for heart failure patients with appropriate healthcare oversight.
The Quick Take
- What they studied: Whether people with chronic heart failure can safely fast during Ramadan without experiencing serious health problems or needing emergency hospital care.
- Who participated: The review analyzed seven clinical studies of heart failure patients who fasted during Ramadan, mostly conducted in the Middle East and North Africa region.
- Key finding: Ramadan fasting did not increase hospitalizations, worsen heart failure symptoms, or raise death rates in heart failure patients who received proper medical supervision.
- What it means for you: If you have heart failure and want to fast during Ramadan, it may be safe to do so with your doctor’s approval and close monitoring. However, you should never stop taking your heart medications and should discuss your fasting plans with your healthcare team beforehand.
The Research Details
Researchers conducted a systematic review, which means they searched medical databases for all published studies on a specific topic and carefully analyzed the best ones. They looked through three major medical databases (PubMed, Scopus, and Web of Science) to find studies examining how Ramadan fasting affects people with chronic heart failure. They included only high-quality clinical studies and excluded review articles, case reports, animal studies, and conference abstracts. Seven studies met their strict criteria for inclusion. The researchers evaluated the quality and potential bias of each study using established scientific tools to ensure the findings were reliable.
This research approach is important because it combines evidence from multiple studies to give a clearer picture than any single study could provide. By systematically reviewing all available research on this topic, scientists can identify patterns and draw stronger conclusions about whether fasting is safe for heart failure patients. This type of review helps doctors make better recommendations for their patients who want to observe Ramadan.
The review followed strict international guidelines (JBI and PRISMA standards) for conducting systematic reviews, which means the researchers used a transparent, reproducible process. They carefully evaluated the quality of each included study using established critical appraisal tools. However, the review included only seven studies, and most were from one geographic region, which may limit how broadly the findings apply to all heart failure patients worldwide.
What the Results Show
The main finding was reassuring: Ramadan fasting did not lead to increased hospitalizations among heart failure patients in the studies reviewed. Patients who fasted during Ramadan did not experience worsening of their heart failure symptoms or higher death rates compared to what would be expected. The studies showed that when heart failure patients fasted with appropriate medical supervision and continued taking their prescribed medications, they generally tolerated the fasting period well. This suggests that fasting during Ramadan may be compatible with heart failure management when done carefully.
The review noted that the safety of Ramadan fasting in heart failure patients appeared to depend on several factors: regular medical supervision, adherence to prescribed heart medications, and individual patient characteristics. Studies conducted in the MENA region (Middle East and North Africa) provided most of the evidence, suggesting that healthcare practices in these areas may support safe fasting for this population.
This systematic review adds to a growing body of evidence suggesting that Ramadan fasting may be safer for people with chronic diseases than previously thought. Earlier concerns about fasting causing serious complications in heart failure patients appear to be overstated when proper medical oversight is in place. The findings align with other research showing that many chronic disease patients can safely observe religious fasting with appropriate precautions.
The review included only seven studies, which is a relatively small number. Most studies came from the MENA region, so the findings may not apply equally to heart failure patients in other parts of the world with different healthcare systems. The review did not examine specific subgroups of heart failure patients who might be at higher risk, such as those with very severe heart failure or multiple other health conditions. Researchers called for larger, prospective studies (where patients are followed forward in time) to provide stronger evidence.
The Bottom Line
Heart failure patients interested in fasting during Ramadan should discuss this with their cardiologist or heart specialist before beginning. With medical approval and close monitoring, fasting may be safe for many heart failure patients. Patients must continue taking all prescribed heart medications without interruption. Those with severe heart failure, multiple other serious health conditions, or unstable heart symptoms should be especially cautious and may need to avoid fasting. Confidence level: Moderate, based on seven studies with some geographic limitations.
This research is most relevant to Muslims with chronic heart failure who want to observe Ramadan fasting. It is also important for cardiologists and heart specialists who care for patients from Muslim backgrounds. Family members of heart failure patients may find this information helpful for understanding their loved one’s health decisions. Healthcare systems in regions with large Muslim populations should use these findings to develop guidelines supporting safe fasting practices.
Heart failure patients who fast during Ramadan typically experience any effects within the fasting period itself (about 30 days). Most patients in the reviewed studies did not develop new problems during or immediately after Ramadan. However, individual responses vary, so ongoing monitoring throughout the fasting month is essential.
Frequently Asked Questions
Can someone with heart failure safely fast during Ramadan?
Research suggests fasting may be safe with doctor approval and close monitoring. A 2026 review of seven studies found no increase in hospitalizations or deaths among heart failure patients who fasted during Ramadan with medical supervision and continued their medications.
What should heart failure patients do before fasting during Ramadan?
Discuss fasting plans with your cardiologist before Ramadan begins. Your doctor may adjust medication timing, recommend specific monitoring strategies, or advise against fasting if your heart failure is severe. Never stop taking heart medications without medical guidance.
What warning signs should heart failure patients watch for while fasting?
Seek immediate medical attention if you experience chest pain, severe shortness of breath, fainting, rapid or irregular heartbeat, or sudden swelling in your legs. These symptoms may indicate your heart needs urgent care and fasting should stop immediately.
Do heart medications need to be taken differently during Ramadan fasting?
Your doctor may adjust when you take medications to fit your fasting schedule, but you must continue all prescribed heart medications. Never skip doses. Discuss timing adjustments with your cardiologist before Ramadan to ensure proper medication coverage.
Are there heart failure patients who should not fast during Ramadan?
Patients with severe heart failure, unstable symptoms, or multiple serious health conditions should avoid fasting. Those recently hospitalized for heart problems or experiencing worsening symptoms should consult their doctor before considering fasting during Ramadan.
Want to Apply This Research?
- Track daily heart failure symptoms during Ramadan fasting: shortness of breath severity (scale of 1 to 10), number of times you felt dizzy or lightheaded, swelling in legs or ankles, and weight changes. Record these daily in your health app to share with your doctor.
- Set daily reminders in your app to take all heart medications at the same time each day, even during fasting hours. Create a medication checklist for Ramadan to ensure you never miss doses. Log your fluid intake and weight daily to catch any sudden changes that might indicate heart problems.
- Use your app to schedule weekly check-ins with your healthcare provider during Ramadan. Set alerts if you experience warning signs like unusual shortness of breath, chest discomfort, or sudden weight gain. Keep a running log of how you feel each day to identify patterns and share with your doctor at follow-up visits.
This article summarizes research findings and is not medical advice. People with chronic heart failure should consult their cardiologist or heart specialist before fasting during Ramadan or making any changes to their treatment plan. Individual health circumstances vary significantly, and what is safe for one person may not be safe for another. Never stop taking prescribed heart medications without medical guidance. If you experience chest pain, severe shortness of breath, fainting, or other serious symptoms, seek emergency medical care immediately. This information is intended for educational purposes and should not replace professional medical evaluation and personalized recommendations from your healthcare provider.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.