PhysicalEffectsOfFasting

Health

How Long Can You Survive Without Eating?

Understanding the Basics of the Human Body’s Nutritional Needs To understand how long a person can go without eating, it’s important to first understand the body’s basic nutritional needs. The human body requires three main macronutrients for survival: carbohydrates, proteins, and fats. These macronutrients are broken down during digestion and used for energy, building and repairing tissues, and regulating various…