It's important to note that I cannot diagnose any specific condition or individual based on limited information.
From the information you've provided, it's difficult to definitively determine whether this behavior indicates an eating disorder or narcissism. It's possible that there could be underlying psychological or emotional factors contributing to the senior citizen's behavior. A mental health professional would need to conduct a thorough evaluation and assessment to make an accurate diagnosis.
Eating disorders are complex mental health conditions that involve disturbances in eating behavior, body image, and emotions. They can take various forms, such as anorexia nervosa, bulimia nervosa, or binge eating disorder. On the other hand, narcissism is a personality trait characterized by an excessive sense of self-importance, a lack of empathy, and a constant need for admiration.
In some cases, an individual's eating preferences and behaviors may be influenced by various factors, including age-related changes, health concerns, or personal preferences. It's essential for family members to be supportive and understanding, and if there are concerns about the senior citizen's well-being or mental health, it's best to encourage them to seek professional help from a doctor or mental health expert.
Remember, only a qualified professional can properly assess and diagnose any potential mental health concerns. If you're concerned about the person's health or well-being, it's crucial to encourage them to consult a healthcare professional.