And some research pointed out that under the chocolate includes 4 kinds easily to cause the esophagus sphincter relaxation material at least, including caffeine, theobromine, theine and fat.

• 另有研究指出，巧克力含有至少4种容易引起下食道括约肌松弛的物质，包括咖啡因、可可碱、茶碱及脂肪。