Following the enforcement by the Camera Nazionale della Moda Italiana in Milan of Body Mass Index standards — runway models may not walk unless they have a BMI of at least 18 — rumor has it that supermodel Gisele Bundchen gained 15 pounds just so she could make a catwalk comeback at the Dolce & Gabbana show.

So if Gisele is 5’11”, and her BMI is now 18, that puts her weight at 129 pounds. Gasp. In the world of models, that’s, like, husky.

Anyway, while it’s unconfirmed whether Gisele will be making any appearances during Paris fashion week, the Milan model weigh-in begets the question — how are all these big-time models, who may have bulked up to meet Italian weight standards, going to drop the pounds and inches to fit into Paris fashion week’s notoriously smaller sample sizes?

One colleague suggested the models run from Milan to Paris — “Like a model marathon.”