White Bread
White bread when eaten in large quantity especially without adequate fluid intake or without butter can result in hard, dry stools. This applies to processed grains as well. Their fiber-rich parts are removed during processing, leaving the parts low in fiber.
Processed grains can be replaced with whole grains to improve daily fiber intake, improve bowel movement, and avoid constipation.
Persimmons
They are a kind of fruit that has been found to cause constipation in some people. The astringent variety [3] actually contains a compound known as Tannins in large quantity. Tannins have been found to reduce intestinal secretions, slow down gut contractions which lead to slowed bowel movements and consequently, constipation. This is not obtainable for every person.