It'd be fair to assume that, like many A-list celebs, Vera Wang's incredible looks are down to an extreme lifestyle that avoids anything even remotely bad.
But while there are some healthy aspects to her day-to-day life, some of the secrets behind her undeniably sprightly appearance might surprise you - including something she's dubbed a 'magic elixir'.
The 74-year-old fashion icon has seemingly discovered fountain of youth, but that doesn't stop her from enjoying some of life's simple pleasures.
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The fashionista admitted she's partial to a couple of things that few of us are strangers to: some fast food and a cocktail.
Speaking to Page Six Style a while back, Wang revealed: "I do eat McDonald’s, absolutely."
She continued: "I order it every day, like two weeks on it, and then I’ll change."
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But it's seemingly not just Maccies, as Wang said she also gets a hankering for Dunkin’ Donuts.
"I like the cream-filled, sugar-coated donut," she shared. "It’s like a jelly donut, but it’s cream inside, vanilla cream. I like the pink with sprinkles, too."
Of course, it’s not all Big Macs and donuts for Wang, as she has previously explained that working hard also help keep her youthful.
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The New York-born businesswoman revealed she has never thought of 'going way out of [her] way' to 'preserve youth in a fanatical, obsessive way'.
"It's very complimentary and I am very grateful for that," she told BBC 100 Women last year.
"But, I have been asked; what are my 'secrets'.
"I've been in fashion since I was 19 years old. Not in front of the camera, behind it.
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"I never thought about youth, probably because I work with the most beautiful women in the world on a daily basis.
"And because of that I more envision them as my muses, and maybe it's a way of dealing with ageing that is productive."
Wang has also said that she thanks her 'magic elixir' which helps her keep so young.
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"I always said that vodka cocktail, a lot of sleep, but work - work is the magic elixir," she added.
Talking about her approach to her diet, where she champions balance and moderation, Wang once told Harper's Bazaar: "I go through phases with what I eat for lunch.
"I like sashimi with brown rice and vegetables, Chinese steamed broccoli with chicken and rice, or the artichoke salad or fish from Sant Ambroeus.
"At one point I was eating a slice of Ray's pizza every day, and I never gained a pound on it. It's not a bad thing if you squeeze out that excess oil. It's so filling.
"I only drink water - I stopped drinking Diet Coke six years ago. That was the hardest thing I ever gave up."
Topics: Vera Wang, Fashion, Beauty, Celebrity, Food and Drink
Jess Hardiman