However, the actress was discharged the next day.
'She didn't look well,' The Sun quoted an onlooker as saying.
The actress' publicist Stephen Huvane refused to reveal the reason behind her visit to the hospital.
'Everything is fine. She is back at home. We are not commenting on the reason for her hospitalisation, as it is personal,' E! News quoted Huvane as saying.
Paltrow had gone through a knee surgery last year when she accidentally bashed her knee on furniture while tending to her children, Apple and Moses.
Text: ANI | Photograph: Getty Images