Nutrition and Health
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 55 kJ (13 kcal) |
| Carbohydrates | 2.2 g |
| - Dietary fibre | 1.1 g |
| Fat | 0.2 g |
| Protein | 1.4 g |
| Water | 96 g |
| Vitamin A equiv. | 166 μg (21%) |
| Folate (vit. B9) | 73 μg (18%) |
| Vitamin C | 4 mg (5%) |
| Vitamin K | 102 μg (97%) |
| Iron | 1.2 mg (9%) |
| Potassium | 238 mg (5%) |
| Percentages are relative to US recommendations for adults. |
|
Depending on the variety, lettuce is a good source of vitamin A, vitamin K and potassium, with higher concentrations of vitamin A found in darker green lettuces. It also provides some dietary fiber (concentrated in the spine and ribs), carbohydrates, protein and a small amount of fat. With the exception of the iceberg type, lettuce also provides some vitamin C, calcium, iron and copper, with vitamins and minerals largely found in the leaf. Lettuce naturally absorbs and concentrates lithium.
Read more about this topic: Lettuce
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