Answer:
one-half
Explanation:
Thomas has an eating disorder. He eats large amounts of food and then is afraid of gaining weight. This fear causes him to go to the bathroom and vomit.
Thomas does this because he believes he will be avoiding weight gain, however, vomiting is not helping Thomas to lose weight and may even make him put on even more weight. This is because the food that was vomited was already partially digested. In addition, vomiting does not help Thomas lose body fat and only removes around one-half percent of the calories he consumed.