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.
Iceberg lettuce Sodium Content. Welcome to the nutritional sodium content in 1 different types of iceberg lettuce, ranging from 10 mg to 10 mg per 100g. The basic type of iceberg lettuce is Lettuce, iceberg (includes crisphead types), raw which in 100g contains 10 mg of sodium. The total recommended daily allowance or RDA for sodium is 1600 mg.