These substances cause excessive amounts of water to remain in the stool, leading to diarrhea. Certain foods (such as some fruits and beans) and sugar substitutes in dietetic foods, candy, and chewing gum (for example, hexitols, sorbitol, and mannitol) can cause osmotic diarrhea.
The four most common types of green lettuce -- green leaf, romaine, butterhead and iceberg -- have 13 to 17 calories in 100 grams, which is about a 1/2-cup serving of shredded lettuce. They deliver 1 gram of protein, or about 2 percent of the recommended daily intake.
A chicken lettuce wrap has 8 g of fat, 4 g of which are saturated, according to PeerTrainer.com. It also has 16 g of carbohydrates, 5 g of fiber, 23 g of protein and no sodium. In comparison, a restaurant wrap may have 70 g of fat, 16 g of which are saturated. It could also have 75 g of carbohydrates, 9 g of fiber, 34 g of protein and 1740 g of sodium. Choose grilled chicken over chicken tenders and skip creamy dressings and cheese to limit fat. Add fiber by including beans and vegetables.