"I'm feeling a little better than yesterday but obviously not fanstastic," Wilson told ESPN 103.3 FM on Wednesday. "I've probably lost six to 10 pounds in the last 36 hours, so that's not good.
"It's kind of a freak thing. Five or six guys all ate some bad chicken sandwiches or something like that at the stadium. What do you know? Everybody enjoyed their off day. ... Our trainer did some investigating, and found out the common link. A couple of other guys are sick."
Rangers assistant general manager Thad Levine, who is with the club in Cleveland, told ESPNDallas.com that a few players and staff members had "symptoms consistent with food poisoning" on Tuesday morning. He said all of them are better, but that the team wanted to be careful with Wilson in particular because of the demands of a starting pitcher.
Wilson is coming off his first start since 2005 in which he pitched seven scoreless innings. He gave up five hits and struck out nine in a 3-1 loss to Toronto.
"We haven't determined when he gets reinstated into the rotation," Levine said. "... As much as I think he's willing to gut it out and go out there, we're eight games into the season and we've had an off day, so we can adjust to what we need to."