When the child's food intake is insuficient physiological and metabolic changes takes place to conserve energy what is the process called?

The process by which the body conserves energy in response to insufficient food intake is known as "metabolic adaptation" or "adaptive thermogenesis." During this process, the body reduces its basal metabolic rate and alters hormonal responses to maintain energy balance, prioritizing essential functions. This can lead to a decrease in overall energy expenditure and a shift in how the body utilizes stored energy.