Usefulness of No. 00 capsules containing contrast medium tests for functional dyspepsia was evaluated in 13 healthy volunteers and 22 patients with dysmotility-like symptoms. Each subject swallowed 15 No. 00 capsules with Okunosu A (200Kcal; Horika Canned Food Co., Niigata, Japan), and at 0, 15, 30, 45, 60, 90, 120 min, the capsule movement and size were monitored fluoroscopically and radiograms were obtained. And more, we tried to examine 5 healthy volunteers using 15 No. 3 capsules or 20 sitzmarks with Okunos A. In addition, they were examined by using 15 No. 00 capsules and sitzmarks meal. As a result, visualized capsule movement from the proximal to distal stomach up to 90 min was faster in the patients. The number of capsules remaining in the distal stomach from 30 min up to 120 min was significantly larger in the patients (p<0.05). This test method was evaluated as being useful in monitoring solid emptying and we recognized that the way of the examination using No. 00 capsules and Okunos A could be an aptitude for evaluating functional dyspepsia up to date.