Final answer:
In the late stages of starvation, the body breaks down protein for energy, leading to muscle wasting and organ dysfunction. Ketones are used as an alternate fuel source for the brain. Prolonged starvation can cause severe metabolic imbalances and electrolyte disturbances.
Step-by-step explanation:
In the late stages of starvation, when fat reserves are completely depleted, the body begins to break down protein for energy. This leads to muscle wasting, weakness, and organ dysfunction. Additionally, the body starts using ketones as an alternate fuel source for the brain and other glucose-dependent organs. Overall, prolonged starvation can result in severe metabolic imbalances, electrolyte disturbances, and even death.