New York, Mar 1 : Jon Paul Buchmeyer, who worked as a publicist for Tyra Banks during her `Inside Out' book tour, has revealed some secrets about the former model in his new memoir.

In `Alphabet City', Buchmeyer wrote: "Chips with the fat substitute Olestra cause Tyra to have intestinal distress," reports the New York Post.

He also said: "Tyra thinks white limos are tacky," and to beware of fans who bring teddy bears to book signings -- "Anyone that showed up at a book signing offering a stuffed animal probably needs a security escort." (ANI)