Vera Wang just revealed that her youthful glow doesnt have anything to do with maintaining a clean diet.

The famed fashion designer, 74, talked about her fast-food habits and her aging philosophy with Page Six at Thursdays DKMS gala in New York, an annual event run by the Deutsche Knochenmarkspenderdatei nonprofit.

Revealing how shes not one to keep to a restricted meal plan, Wang admitted to sometimes eating fast food for days on end.

I do eat McDonalds, absolutely, said the bridalwear visionary, who has previously been photographed with a burger and french fries from the chain. I order it every day, like two weeks on it, and then Ill change.

Shes not averse to sweet things either, telling Page Six about some of her go-to Dunkin orders.