Given the task definition and input, reply with output. In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.

Sentence 1: Alvin's wife had been on a diet. Sentence 2: He didn't like any of the food she had been cooking. Sentence 3: Alvin would stop and pick up a burger on the way home from work. Sentence 4: He ate very little of what she cooked. Sentence 5: Alvin's wife lost weight, but he gained it.
Alvin and the Diet