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.
Protein in Garden Salad. The favorite choice for the term Garden Salad is 1 cup of Lettuce Salad with Assorted Vegetables which has about 0.6 grams of protein. The amount of protein for a variety of types and serving sizes of Garden Salad is shown below. Popular Types of Garden Salad. Garden Salad with Assorted Vegetables. 0.55.