Healthy Ramadan: what science says about fasting, health, and how to do it safely

Ramadan fasting and your health: evidence-based guidance for a safer holy month

As the blessed month of Ramadan arrives, millions of Muslims in Pakistan and around the world begin a month of dawn-to-dusk fasting that is as spiritual as it is physiological. But beyond faith and tradition, modern science has increasingly focused on what Ramadan fasting does to the human body—and how people can protect their health while observing it.

Health authorities and medical researchers agree on one thing: fasting can be beneficial when practiced correctly, but risky when done without medical awareness.

According to the World Health Organization, structured fasting can help improve insulin sensitivity and support metabolic balance when combined with adequate hydration and balanced meals. Similarly, the National Health Service advises that Ramadan fasting is generally safe for healthy adults, provided meals are planned carefully and overeating at iftar is avoided.

A message from Medical News: Ramadan Mubarak Pakistan: A month of faith, fasting, and healing

What fasting does inside the body

During fasting hours, the body shifts from using glucose as its main fuel to burning stored fat, a process that may support weight regulation and metabolic health. A review published by Harvard Medical School notes that time-restricted eating patterns—similar to Ramadan fasting—can improve cholesterol levels, reduce inflammation, and promote cellular repair mechanisms.

However, experts warn that these benefits depend heavily on how people eat during non-fasting hours. Diets dominated by fried foods, sugary drinks, and heavy portions can cancel out the positive effects and increase the risk of dehydration, gastric problems, and blood sugar spikes.

Sehri and iftar: the medical way to eat

Doctors recommend that sehri should include slow-digesting carbohydrates such as whole grains, protein sources like eggs or yogurt, and fruits for hydration and fiber. At iftar, breaking the fast with dates and water remains medically sound, as it restores glucose gently. A light meal before heavier foods helps prevent digestive stress.

The NHS advises limiting salt and caffeine during Ramadan, as both contribute to dehydration. The WHO also emphasizes that water intake between iftar and sehri should be spread throughout the night rather than consumed all at once.

Related story: Ramadan health alert: Cardiologist urges safe fasting & fitness

Special caution for patients

People living with diabetes, kidney disease, heart conditions, or those taking regular medication should consult their doctors before fasting. Research published in international diabetes journals shows that unmonitored fasting in diabetic patients can increase the risk of hypoglycemia or dangerous glucose swings.

Medical experts stress that Islam exempts the sick from fasting, and using these exemptions is not a failure of faith but a protection of life.

A public health moment for Pakistan

In Pakistan, where dehydration, malnutrition, and diabetes remain major public health challenges, Ramadan represents a critical opportunity for health education. Clinicians argue that mosques, media, and healthcare institutions should work together to promote safe fasting practices—turning the holy month into a nationwide wellness reset rather than a nutritional relapse.

As Ramadan begins, the science is clear: fasting can heal, but only when guided by balance, hydration, and medical sense. This month is not just about staying hungry—it is about staying healthy.

Stay connected with Medical News Pakistan

CLICK HERE TO JOIN our WhatsApp Community for the latest health updates, life-saving medical news, and expert guidance straight to your phone.