4. Kiwi Fruit

Another great source of dietary fiber is kiwi, which contains an average of 2.3 grams of fiber or almost 9% of the recommended daily intake. Studies have shown that eating an average of 2-3 kiwis per day increased the ease and frequency of bowel movements in people aged over 60.

On top of its fiber content, kiwis also contain the enzyme actinidine, which promotes upper gastrointestinal movement, as well as several phytochemicals that improve digestion.