Thanks, that article has a lot of information. I am scheduled to see a functional doctor near Christmas time. Functional medicine emphasizes quality of life and so forth where regular medicine usually opts for the bare minimum (that is how I understand the difference). There seem to be a lot of causes for the chalky taste. I don't think I have acid reflux. I try not to lay down until the food is out of my stomach, because it will burn the esophagus. I have always wondered if I have a blood sugar problem, but the doctors so far say no. IDK. The doctors I have been seeing rarely want to investigate these things. They pat me on the head and send me on my way.