​Say what you will about Gwyneth Paltrow, the actress actually does many things well. No one can ever take away her Oscar win, and her cookbooks are, quite honestly, excellent if you can get past the inherently ridiculous tone-deafness of them.

But her track record as a wellness guru has been a little spotty. Since launching her website, Goop, in 2008, the lifestyle site has come under fire not just for being out of touch and selling $US580 jean jackets, but for spreading health advice that doctors find dubious.

Gwyneth Paltrow is the avatar for the new luxury wellness movement. Credit:AP

For example, after a special report about the benefits of jade eggs - inserted into the vagina to "increase chi, orgasms, vaginal muscle tone, hormonal balance and feminine energy in general" - gynaecologists warned that the dangers could be serious, including the risk of toxic shock syndrome.

Doctors have also questioned her well-publicised detox diets (frequently among the most-read posts on her site), a story about "vaginal steaming" and another that resurrected the long-ago debunked correlation between breast cancer and bras.