Starvation is a severe deficiency in caloric energy, nutrient, and vitamin intake, leading to significant health issues. It occurs when individuals do not consume enough food to meet their body's needs, often due to factors like poverty, conflict, or natural disasters. The body begins to use its fat and muscle stores for energy, which can result in weight loss and weakened immune function. Prolonged starvation can lead to serious health complications, including organ failure and death. Vulnerable populations, such as children and the elderly, are particularly at risk. Addressing starvation often requires humanitarian aid, food security initiatives, and support from organizations like the World Food Programme.