I decided to visit my friend Bob Ritter to find out how this works. He’s a researcher here at Washington State University who is really curious about the connections between our brain and stomach.
“What we eat at lunch is almost completely digested by the time we are ready to eat dinner,” he said. “It is digested, absorbed, and the food has totally changed.”
Read all of this answer from Dr. Universe at https://askdruniverse.wsu.edu/2016/11/22/how-do-we-digest/.
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