On February 6^th, the second AGePOP webinar presented by Theodora Tzakri and Ekaterina Bocharova was presented to almost 70 people from both industry and academia. After a brief introduction, Theodora provided insights into the importance of gastric emptying for oral absorption and how advanced age can affect this parameter. Her novel method for measuring gastric emptying kinetics using specially formulated compression-coated tablets “Manteltablette” containing caffeine was shown to be just as effective, yet more user friendly than conventional techniques for older people that may have trouble swallowing.  Next, Ekaterina offered a valuable perspective on the characterization of luminal gastrointestinal fluids, providing rich detail about the importance of factors such as buffer capacity, acid secretion, fluid volumes and more. Along with a thorough review of the literature, the audience was given a sneak peek of her experimental results in older people. The webinar concluded after an active Q&A session and the recording is now available on the website.