What are signs that a person is starving?

Answer 1

One interesting sign, although it is more subtle than weakness or other symptoms, is bad breath. When you begin to starve your body undergoes amino acid catabolism, break down of proteins, to supply your body with the energy it normally gets from glycolysis. A by product of this is acetone which is released from your body in a gaseous form when you exhale. Acetone causes you to have bad breath. This is the cause of morning breath, as well as, bad breath often associated with some types of Diabetes.