This article discusses the numerous adverse effects of Islamic fasting (Sawm) that have been observed using scientific studies and news sources.
Medical fasting can have health benefits. However, Medical fasting differs from Islamic fasting, and contrary to popular Muslim beliefs, Islamic fasting, unlike Medical fasting, has numerous adverse effects. As we will explain here, Islamic fasting has significant harmful effects on health, national economy and productivity, crime rate, public safety and social behavior. Health effects include heat stress, dehydration, migraines and, for lactating women, the nutritional make-up of their milk, amongst others.
In a recent study done on the Arab world, diseases linked to cholesterol and diabetes increased by 27.65% because of overeating. Other health effects include: