Fasting during Ramadan can have varied effects on the immune system. Some studies suggest that short-term fasting may enhance immune function by promoting autophagy, a process that helps the body clear out damaged cells and regenerate new ones. However, extended periods without food can lead to nutrient deficiencies, which may compromise the immune response. It's essential to focus on a balanced diet during non-fasting hours, ensuring adequate intake of vitamins and minerals to support your immune health. If you have specific health concerns, consult a healthcare professional or your GP for personalized advice.