Although an appetite out of control can be a problem, a good appetite is most often a sign of health and well-being.
Loss of appetite can cause health problems.
But you still need the same proteins, minerals, and vitamins throughout life in order to stay healthy. Some older people, especially men living alone, lose interest in food. Getting out to shop and meet people may be difficult. Even if getting out is not a problem, it may not seem worth the effort to shop and prepare food for one person. Gradually, the pleasant associations are forgotten and appetite disappears.