No, your mirror isn’t lying to you and don’t bother getting on a scale, you haven’t actually gained any weight. But thanks to the new definition for what constitutes being “obese,” nearly 70% of Americans are now technically fatter than they were last week.

According to The Guardian, obesity is no longer determined solely by body mass index (BMI), which previously classified anyone with a BMI of 30 or more as being obese. The new guidelines list additional measurements, such as “waist circumference, waist-to-hip ratio, or waist-to-height ratio,” that are now taken into consideration.

BMI is the most useless metric ever. A 139lbs 5’11” male is somehow “normal” and “healthy”, yet 182 is “overweight”. Big BMI wants you to be a victim. It wants you to be vulnerable to assaults and possibly rapes. It wants you to be carried away by 6000 highly coordinated ants. pic.twitter.com/JGvS6d2LTT

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— K (@AigleRoyalK) October 16, 2025

In addition to expanding the definition of obesity, medical experts have separated obesity into two separate categories: clinical obesity and pre-clinical obesity.

So what this means is that someone with a BMI of 23 could now be considered obese if their waist-to-height ratio falls within the obese category.

Which is good news for the big and tall, but a tough break for the short and round.