On page 2 are the results of learnin ' s selfexperimentOver my lunch hour , I performed the following experiment on myself . I soaked some pineapple pieces in a mixture of three tablespoons of barium which had a consistency equal to cream . I had to use barium in order to visualize the pineapple in my stomach and small intestine . Not only that , I figured there is a good chance that JBR ' s pineapple was in a dish of cream or milk . This was done on an empty stomach , like JBR ' s . I remained standing and walked around in between visualizing my digestive process . Here is the results . 1136 I began chewing and swallowing the pineapple and I did not chew much , choosing to swallow bigger chunks so no one can say that my chunks were smaller than JBR ' s . 1138 I visualized the pineapple and barium resting in the pylorus of my stomach . 1144 I watched as 4 chunks of pineapple exited the duodenal cap and poured into my small intestine . Once in the small intestine , these chunks raced through the first part of the small intestine with good speed . 1150 As I visualized my stomach , I saw five or six pieces of pineapple exit my stomach . By this time , 14 minutes two thirds of the pineapple eaten had exited my stomach . The first pieces of pineapple were far into my small intestine ! By 30 minutes , my stomach was completely empty and much of the pineapple was already in the second part of my small intestine . Folks , this little girl was accosted within 30 minutes of eating that pineapple ! Bank on it .