200801gwyneth.jpgUs Magazine is reporting that Gwyneth Paltrow was admitted to New York's Mount Sinai Hospital yesterday afternoon. The reason for the hospitalization is not known, but could it have something to do with her history of crazy diets?

"She was slumped over in a wheelchair pushed by [husband] Chris Martin," an eyewitness tells Us. "She looked not well."

At 6:30 p.m., a bag — labeled "Gwyneth Martin" — from NYC organic home supply store Organics Avenue, and a white pillow, were delivered.

A source tells Us she and Martin were spending the night.

The couple, who have had some rough patches, were spotted last month dining at BLT Fish, and reportedly in good spirits. Their children, Apple and Moses, were not reported to have been with their parents at the time of admission.

UPDATE: That was fast. OK! reports that Paltrow is...ok! And still not talking about what got her rushed to the hospital (her rep says "Gwyneth is fine and at home - we are not commenting further.").

UPDATE:NY Mag called Organic Avenue to find out what Paltrow purchased from the shop. An employee told them: "She's doing our five-day live-food fast."