Table 1.

Clinical illustrations of “desired weight percentage” and “weight difference percentage” in participants with anorexia nervosa

	Case Description	Desired Weight	Desired Weight Percentage (desired BMI/20)	Weight Difference Percentage [(current wt-desired wt)/current wt]*100
Ayana	Ayana is a 23 year old woman with AN. She is 5′7″ and 110 lbs, putting her at 86% of a healthy BMI.	130 lbs	Ayana would like to gain weight from 110 to 130 lbs, making her desired weight percentage 102%. This would be a healthy weight for Ayana.	Ayana would like to gain weight from 110 to 130 lbs, making her weight difference percentage −18.2; she wants to gain 18% of her body weight.
Olivia	Olivia is a 27 year old woman with AN. She is 5′10″ and 115 lbs, putting her at 82.5% of a healthy BMI.	120 lbs	Olivia would like to gain weight from 115 to 120 lbs, making her desired weight percentage 86%. This would be an unhealthy weight for Olivia.	Olivia would like to gain weight from 115 to 120 lbs, making her weight difference percentage −4.3; she wants to gain 4% of her body weight.
Camila	Camila is a 29 year old woman with AN. Camila is 5′2″ and 90 lbs, putting her at 82.5% of a healthy BMI.	85 lbs	Camila would like to lose weight from 90 to 85 lbs, making her desired weight percentage 77.5%. This would be an unhealthy weight for Camila.	Camila would like to lose weight from 90 to 85 lbs, making her weight difference percentage 5.6; she wants to lose 5.6% of her body weight.

Notes. AN=anorexia nervosa; BMI = body mass index; lbs = pounds; wt= weight; healthy BMI defined as 20 kg/m²; Names and examples are fictional.