<prompt> Significant weight loss is defined as:5 weight loss in 1-2 months5 weight loss in 2-3 months10 weight loss in 1-2 months10 weight loss in 2-3 months  <response>: Answer is A 5 weight loss in 1-2 months: Significant weight loss is defined as 5 weight loss in I month. Percent weight change over a period of time is calculated using the persons current body weight and persons usual body weight. Usual weight -- Current weight Percent weight change Usual weight 