What are warning signs that a person may be suffering from anorexia nervosa? Eating large amounts of food in a short time, purging, and tooth decay Eating when not hungry, eating alone, or feeling guilt about food Excessive use of laxatives or diet pills and frequent trips to the restroom Extreme weight loss, over-exercising, and obsessing over food consumed

The warning signs that a person may be suffering from anorexia nervosa include:

1. Extreme weight loss: This is often the most visible sign. The person may lose a significant amount of weight in a short period of time and may appear thin or emaciated.

2. Over-exercising: The person may engage in excessive physical activity in an attempt to burn off calories. This could include long sessions at the gym, running for extended periods, or other forms of strenuous exercise.

3. Obsessing over food consumed: The person may show an unusual interest in the food they eat. They may count calories obsessively, avoid certain types of food, or restrict their eating to certain times of the day.

4. Eating when not hungry, eating alone, or feeling guilt about food: These behaviors can indicate a distorted relationship with food. The person may eat even when they're not hungry, prefer to eat alone, or feel guilty or anxious about eating.

5. Excessive use of laxatives or diet pills: This can be a sign of purging, a behavior associated with eating disorders. The person may use these substances in an attempt to lose weight or prevent weight gain.

6. Frequent trips to the restroom: This could be another sign of purging. The person may go to the bathroom immediately after eating in order to vomit.

Note: The first option you provided (Eating large amounts of food in a short time, purging, and tooth decay) is more associated with bulimia nervosa, another type of eating disorder.