Ramadan 2026: When is it and what to expect

Anya Sharma

Feb 15, 2026 • 4 min read

A diverse group of Muslims breaking their fast together at sunset, sharing food and conversation.

Ramadan 2026: When to Expect and How Your Body Responds

As the anticipation for Ramadan builds annually, many in the UK and across the globe begin to wonder: when will this sacred month of fasting commence in 2026? While the exact start date is contingent on the sighting of the new moon, astronomical calculations provide a reliable forecast. For 2026, Ramadan is anticipated to begin around February 15th, concluding approximately 30 days later, around March 17th. These dates are subject to lunar observation, a tradition that adds a unique spiritual element to the commencement of the holy month.

Understanding the Lunar Calendar

The Islamic calendar is purely lunar, meaning each month begins with the sighting of a new crescent moon. This differs from the Gregorian calendar, which is solar-based. Consequently, the dates for Ramadan shift by approximately 10 to 11 days each year relative to the Gregorian calendar. This celestial dance means that over time, Ramadan occurs in every season, offering Muslims a diverse range of fasting experiences.

The Body's Remarkable Adaptation: A 30-Day Fasting Journey

Ramadan is a period of intense spiritual reflection, communal gathering, and, of course, fasting. For 30 days, observant Muslims abstain from food and drink from dawn (Suhur) until sunset (Iftar). This prolonged period of voluntary abstinence triggers a series of fascinating physiological changes within the body. Understanding these shifts can offer valuable insights into health, wellness, and the incredible resilience of the human body.

Days 1-3: The Initial Adjustment

The first few days of fasting are often the most challenging. Your body, accustomed to a regular intake of food, initially relies on stored glucose (glycogen) in the liver for energy. As these reserves deplete, the body shifts its primary fuel source to fat. This transition can lead to common symptoms such as headaches, fatigue, and intense hunger. It's during this phase that your body is actively learning to adapt to the new energy regime.

Days 3-7: Fat Metabolism and Hydration Focus

Once the body successfully transitions to burning fat for energy, a process known as ketosis begins. This is where stored fat is broken down into ketones, which the body can use as an alternative fuel. This metabolic shift can aid in weight loss and reduce the body's reliance on sugar. However, it's crucial to stay well-hydrated, especially during the non-fasting hours. Dehydration can exacerbate fatigue and other discomforts. Balancing nutrient-rich meals during Iftar and Suhur becomes paramount to ensure adequate intake of essential vitamins and minerals.

Days 8-15: Embracing the Fasting Rhythm

By the second week, most individuals find their bodies have significantly adapted to the fasting schedule. Energy levels often stabilise, and the initial discomforts subside. This period is when the body truly begins to reap some of the potential health benefits associated with intermittent fasting. Dr. Razeen Mahroof from Addenbrooke's Hospital in Cambridge highlights that fasting can allow the body to focus on other vital functions, such as cellular repair and detoxification. "On normal days, we consume refined foods which can hinder the body's optimal functioning. Fasting allows the body to concentrate on other processes, leading to self-repair and fighting infections," he explains. The digestive system gets a much-needed rest, and the body can redirect its resources towards healing and rejuvenation.

Days 16-30: Detoxification and Enhanced Functionality

In the latter half of Ramadan, the body's detoxification processes are considered to be at their peak. Organs like the liver, kidneys, and skin work efficiently to eliminate toxins and waste products. The mind often experiences increased clarity and focus as the body streamlines its energy usage. While the body is adept at generating energy from fat, it's important to note that during prolonged fasting, muscle tissue can be broken down for energy if nutritional intake is insufficient. However, the limited duration of Ramadan fasting (dawn to dusk) allows for ample opportunity to replenish nutrients and energy stores during Iftar and Suhur, thus preserving muscle mass and promoting healthy weight management.

Is Fasting Beneficial for Health?

Ramadan fasting, when practised correctly, can offer numerous health benefits. It encourages mindful eating, helping individuals become more aware of their food choices and consumption patterns. It can improve insulin sensitivity, reduce inflammation, and promote cellular repair. However, it's essential to approach Ramadan fasting with health in mind. Individuals with pre-existing medical conditions should consult their doctor before fasting. Furthermore, overindulging in unhealthy foods during Iftar and Suhur can negate the potential benefits of fasting. The key lies in a balanced diet and adequate hydration.

Preparing for Ramadan 2026

As the predicted dates for Ramadan 2026 approach, it's advisable for those planning to fast to gradually adjust their eating habits in the weeks leading up to the commencement. This includes managing caffeine intake and ensuring a balanced diet. For those in the UK, understanding the specific timings for Suhur and Iftar, which vary by geographical location, is also crucial. Websites and apps dedicated to Ramadan schedules can provide precise local timings. By understanding both the temporal aspect of Ramadan 2026 and the physiological journey it entails, individuals can approach this sacred month with informed preparation and a deeper appreciation for its spiritual and physical dimensions.

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