What is the y on dietland?

"Dietland" is a novel by American author Sarai Walker, published in 2015. The novel follows the story of Plum Kettle, an overweight woman working as a ghostwriter for a popular magazine's beauty advice column. She is constantly harassed by society for her size and has low self-esteem. However, as she becomes involved with a feminist group called "Jennifer," she begins to re-evaluate her relationship with her body and the world around her.

The "y" referenced in the question is unclear; however, the novel explores themes related to body image, fat acceptance, and female empowerment. It is a satirical and thought-provoking critique of the beauty and diet industry, as well as society's perception of women's bodies. The book has received critical acclaim and was adapted into a television series in 2018.