School thinks this girl is too fat!

Photo: New York Post, Stephen Yang.

Photo: New York Post, Stephen Yang.

STATEN ISLAND, N.Y. — Do you think this girl is fat?

Neither does her mother, but the City of New York begs to differ.

The New York Post reported 9-year-old Gwendolyn Williams’ school sent home a letter stating she was “overweight” by Body Mass Index standards.

“I was like, ‘Oh, my God! Why did I get this?’” the Staten Island student said.

According to the report, the healthy third grader and other students were given the “Fitnessgrams” and told not to open them and take them home.

However, the letters are only sealed with a small sticker and sometimes kids peek.

“I’m 4-foot-1, and 66 pounds and I’m like, ‘what?’” Gwendolyn told the New York Post.

The city sent home the assessments to 870,000 public school students in kindergarten through grade 12.

Gwendolyn’s mom, Laura Bruij Williams, said she found out about the letters while putting her daughter into bed.

“She said, ‘Hey, Mom, the school told me I’m overweight,’ and then she started jiggling her thighs and saying, ‘Is this what they mean?’” Laura said. “That was heartbreaking.”

The next day, Laura called the principal who she said was sympathetic, but said the children were told not to open the letters.

The BMI is supported by the federal Centers for Disease Control and Prevention.

BMI was created decades ago by the insurance industry as a way of assessing the health of groups of people, not individuals, according to Chevese Turner with the Binge Eating Disorder Association.

“Dieting, especially for kids, is the gateway drug for eating disorders and so is the public shaming that can come with this,” she said.

MORE: See the full story from the New York Post here.