And this is not a joke.

The model, who in a beautiful white dress by Alex Perry posed on the runway with her ex-husband's wife Katy Perry, as well as with her current husband, billionaire Evan Spiegel, watches her diet even when she goes out into the world.

The model posted a video on Instagram and showed how she ate a banana and drank coconut water while other guests drank wine and ate various snacks.

Miranda Kerr / Photo: Instagram of Miranda Kerr

Australian radio hosts Michael Wipfley and Ryan Fitzgerald were also guests at the event and said they were surprised to see Miranda bring her own food.

On their radio show on Monday, the hosts explained that their table had run out of wine and food, and Miranda, Evan and Katy Perry hadn't even touched their drinks.

"She ate a banana at the table. She had a banana for dinner," one of the presenters joked.

"She's stunning," chimed in another, according to the Daily Mail.

Katy Perry and Miranda Kerr / Photo: Getty Images

However, nothing surprising.

Miranda Kerr prefers to follow the rules of healthy eating.

Why her husband Evan and Katy Perry did not eat and drink - maybe for the company, or maybe Miranda grabbed a banana for them, the story is silent.

Evan Spiegel and Miranda Kerr / Photo: Getty Images

Read also:

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  • To be in shape: the mother of many children, Miranda Kerr, revealed her secret to slimness

  • Spectacular appearance: Miranda Kerr showed off her slender legs in a sequined minidress