Of course she could eat 1500 Calories a day. Because drinks obviously don't count. That venti frapp with extra whip and low fat milk doesn't count. The three milkshakes are healthy because they have milk and a cherry on them. She had a 30oz smoothie for breakfast along with her breakfast which doesn't count because it has fruit in it and fruit Calories don't count. Also, she probably never figured out her maintenance weight. At 5'3" and 100 lbs, 1400 is my maintenance so at 1500 I would actually gain weight.