There's a new body challenge out there, and it's based off a Disney princess' impossible proportions.

The body challenge consists of a diet where the goal weight is to be as close to Cinderella's proportions as possible.

Cinderella diet
photo: Disney

It also requires a bit of math: To calculate your Cinderella weight, you'd have to measure your height in meters, square it, then multiply it by 18.

So basically, a woman who's 5'4" would clock in at roughly 1.65 meters, which, when squared and multiplied, would have a Cinderella weight of roughly 49 kilograms, or about 108 pounds.

It's easy to see where this challenge can go wrong.

According to the BMI (Body Mass Index) — which is shitty at correlating health and weight, but still the most popular method used — the Cinderella weight is either fully underweight, or on the border.

For example, a 5'4" woman with a Cinderella weight of 108 pounds would have a BMI of 18, which is veering between underweight and "normal" weight.

Plus, health looks different on everyone. Saying that one weight is a "goal" weight is terrifying, incorrect, and beyond messed up.

Some people argue that the weight challenge is utterly atrocious.

A diet that basically encourages you to be underweight is a hair away from an eating disorder.

The weight chart is absolutely fucked up.

It equates a goal weight to a standard of beauty that most people can't ever come close to achieving. Additionally, don't you dare equate Disney princesses with an "ideal" weight. Princesses come in all shapes and sizes.

While the trend originated in Japan, it's quickly making its way around the world.

If you're naturally at a Cinderella weight, great. Same goes for if you're naturally below that weight and healthy, too.

However, achieving that weight isn't healthy for EVERYONE.

Regardless, equating a weight to a Disney princess isn't cool.

Hard pass on this.

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