Knowra Fasting Fasting Fasting is the deliberate abstention from some or all food, usually for a defined period. It may be practiced for religious, medical, cultural, or personal reasons.
Glycogenolysis : The breakdown of glycogen into glucose, especially in the liver and muscles. Liver glycogen helps maintain blood glucose during the early hours without food.
Intermittent fasting : Eating patterns that alternate periods of eating with recurring periods of fasting. It is a broad modern approach built around scheduled intervals without food.
Calorie restriction : A sustained reduction in energy intake without necessarily eliminating food for set periods. Unlike fasting, it usually reduces daily calories while preserving regular meals.
Weight loss : A reduction in body mass, often resulting from sustained energy intake below energy expenditure. Fasting can reduce opportunities to eat, but weight change depends on overall intake and behavior.
Gluconeogenesis : The production of glucose from non-carbohydrate precursors such as lactate, glycerol, and amino acids. As fasting continues, this pathway helps supply glucose to tissues that need it.
Ramadan : The ninth month of the Islamic lunar calendar, observed by Muslims through fasting from dawn to sunset, with exemptions. Its daily fast is a prominent religious practice with defined hours and communal traditions.
Time-restricted eating : An eating pattern that confines food consumption to a recurring daily window. It emphasizes the timing of meals and is often distinguished from longer fasts.
Hypoglycemia : A blood glucose level low enough to cause symptoms or require treatment. Fasting can trigger or worsen low blood glucose, especially with diabetes medications.
Ketogenesis : The production of ketone bodies from fatty acids, primarily in the liver. Longer periods without food increase ketone production as fat becomes a major fuel source.
Yom Kippur : The Jewish Day of Atonement, observed with prayer and a traditional fast lasting from sunset to nightfall. Its fast is a central ritual of repentance and reflection.
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