United Kingdom, Feb. 12 -- Gwyneth Paltrow underwent a treatment to filter toxins from her blood after battling "chronic fatigue" and "brain fog".

The Hollywood actress-turned-wellness guru, 53, has revealed she turned to a therapy called therapeutic plasma exchange to cleanse her blood of toxins such as microplastics and mould - and the Iron Man star felt "amazing" afterwards.

According to the Daily Mail newspaper's Richard Eden in his Eden Confidential column, she said: "I'd been going through lots of health stuff with that kind of ambiguous chronic stuff that medicine normally has a harder time dealing with: chronic fatigue, brain fog.

"I was so interested in this idea that we could filter out things in our blood that were making us...