There was a bowl of pineapple found in the dining room.
Here is a picture of the bowl, from a candy rose.
Also from a candy rose:
PMPT Page 433
"The police had to piece together the findings of the various pathologists, who had explained to them that when food is swallowed, it goes first to the stomach, then passes to the duodenum, and from there to the lower small intestine. Eventually, the digested food passes into the large bowel, from which it exits. Food found in the stomach and intestines can sometimes be used to estimate the time of ingestion and to narrow the time of death.
In the Ramseys' dining room, just steps away from the kitchen, the police had found a bowl with fresh pineapple in it. Meyer noted in his report that the pineapple in JonBenét's small intestine was in near-perfect condition -- it had sharp edges and looked as if it had been recently eaten and poorly chewed.
Based on the condition of the pineapple in her intestine, the experts estimated that JonBenét had eaten it an hour and a half or two hours before she died, most likely after the family returned home that night. If she had eaten the pineapple after 10:30 P.M., that made the approximate time of death not earlier than midnight."
The coroner (Meyer) had in his report that the pineapple was in near perfect condition.