Lettuce is not dietary fiber, but lettuce contains dietary fiber.
Lettuce is a food, any kind of food is a mixture, lettuce contains dietary fiber, carbohydrates, minerals, vitamins and many other nutrients.
Each 100 grams of lettuce contains 10 calories, of which 1.1 grams of carbohydrates, 1.6 grams of protein, 0.4 grams of fat, 1.1 grams of dietary fiber, 91 milligrams of potassium, 14 milligrams of calcium, and A4 micrograms of vitamins. Moderate consumption of lettuce can increase the source of dietary fiber, promote intestinal peristalsis, conducive to intestinal health.
In addition to lettuce, other foods also contain dietary fiber, such as soybeans, celery, hawthorn and so on. Usually should be balanced nutrition, reasonable diet, as much as possible to intake a variety of nutrients, to achieve nutritional balance, good health.