What foods are the easiest to digest if you have issues with digestion?

Depends. On the digestion issue, e.G gas, bloat, or cramps, or nausea, or diarrhea, or constipation, or pain (location is a factor). In general, avoid fried greasy, spicy foods, alcohol, chocolate, coffee. Some are sensitive to the carbohydrates in dairy, or grains and beans. Some have issues withe proteins in wheat and some other grains. Avoid carbonated beverages, sugarless gum ( sorbitol). See a doc, rd.