Gwyneth Paltrow celebrates her 48th birthday by posing in her 'birthday suit'

Gwyneth Paltrow has taken to Instagram to celebrate her 48th birthday in style - by posing completely naked next to a tree in her "birthday suit".

Yes, the actress and founder of oft-discussed wellness/ modern lifestyle brand Goop looked delighted as she posed next to some foliage, embracing the natural look in more than one sense.

Check out this Goop advert - starring Gwyneth Paltrow:

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"In nothing but my birthday suit today... thank you all so much for the birthday wishes and thank you to @goop ‘s insanely amazing brand new body butter for making me think I can still get my kit off."

The picture is cleverly captioned - both celebrating her birthday and extolling the virtues of one of her company's products.

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And Paltrow's fans were delighted with the birthday snap.

Among the many birthday well-wishers, one fan wrote, "This is so so beautiful and promoting great things!" While another added, "Good for you. Life is an adventure to be lived, not an existence to be endured. "

A third commenter wrote, "There's an inner Gwyneth in me. Happy Birthday to us."

Paltrow's teen daughter, Apple, took to the comments to simply write, "MOM… You are killing it tho.", to which Johnny Lowe (son of Rob Lowe) responded that he was praying his own mom "doesn’t get any ideas from this.” Moms, eh?

Earlier this year, the mother and actress took to Instagram to wish her daughter, Apple, a happy 16th birthday. She wrote:

"I can’t believe I’m actually writing these words but... happy sweet sixteen my darling girl.

"You are the light of my heart, you are pure joy. You are wickedly intelligent and you have the best, most dry, most brilliant sense of humor. I have the best time being your mom.

"I love our nightly evening chats when I really get to hear what’s on your mind. You work hard to get whatever it is you want to achieve, and you have grit and responsibility in spades. I am so damn lucky to be your mother, you beautiful, kind young woman. Thank you for choosing me. I adore you to the moon and back a zillion times.

"I’m sorry you are having this particular birthday during these circumstances, but as always with you, you find the best in everything."

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During an interview back in 2012 with Hello! Canada Magazine, Paltrow was asked about her daughter's quirky name, and revealed whose idea it was to name her Apple. She said:

"I know. People did talk about Apple a lot! My [ex-husband, Chris Martin] named her.

"I loved it straightaway. I thought it was so unique and sounded cool. She is nearly eight now and it fits her so perfectly. I can’t imagine her being called anything else."

The Iron Man star was then asked if Apple had ever questioned her parent on her unique name, to which Paltrow responded: "Yeah, and I say, 'Ask you father!'"

Happy birthday, Gwyneth!