People fast for many reasons – health, before surgery, religious, or to lose weight. When you fast, enzymes in the digestive system are diminished. To build these back up, you need to eat carefully to allow your body time to recover.
Another side effect is that your stomach will lose some of its mucus lining. Your stomach will be more sensitive to spicy or acidic food. Also, eat small meals every couple of hours as you readjust to normal food.
Try eating these foods after a fast to ease your stomach back into normal mode.