Lettuce
Lactuca sativaLettuce (Lactuca sativa) is a temperate annual or biennial plant of the daisy family Asteraceae. It is most often grown as a leaf vegetable. In many countries, it is typically eaten cold, raw, in salads, sandwiches, hamburgers, tacos, and in many other dishes. In some places, including China, lettuce is typically eaten cooked and use of the stem is as important as use of the leaf. Both the English name and the Latin name of the genus are ultimately derived from lac, the Latin word for "milk", referring to the plant's milky juice. Mild in flavour, it has been described over the centuries as a cooling counterbalance to other ingredients in a salad.
Lettuce is a fat free, low calorie food and is good for a well balanced diet. It is a valuable source of vitamin A and folic acid. Lactucarium (or "Lettuce Opium") is a mild opiate-like substance that is contained in all types of lettuce. Both the Romans and Egyptians took advantage of this property eating lettuce at the end of a meal to induce sleep.
Nutrition Information for Iceberg Lettuce:
The following nutrition information is for one serving of iceberg lettuce. That would be about one cup of chopped or shredded iceberg lettuce, or 55 grams. This general information is for raw iceberg lettuce.
Macronutrients:
| Water: | 52.60 mg |
| Calories: | 8 |
| Protein: | 0.50 |
| Carbohydrates: | 1.63 g |
| Fiber: | 0.7 g |
| Sugars: | 0.97 g |
| Total Fat: | 0.08 g |
| Saturated Fat: | 0.010 g |
| Monounsaturated Fat: | 0.003 g |
| Polyunsaturated Fat: | 0.041 g |
| Cholesterol: | 0 mg |
Micronutrients:
| Calcium: | 10 mg |
| Iron: | 0.23 mg |
| Magnesium: | 4 mg |
| Phosphorus: | 11 mg |
| Potassium: | 78 mg |
| Sodium: | 6 mg |
| Zinc: | 0.08 mg |
| Vitamin C: | 1.5 mg |
| Thiamin: | 0.023 mg |
| Riboflavin: | 0.014 mg |
| Niacin: | 0.068 mg |
| Pantothenic Acid: | 0.050 mg |
| Vitamin B6: | 0.0230 mg |
| Vitamin B12: | 0 mcg |
| Folate: | 16 mcg |
| Vitamin A: | 276 IU |
| Vitamin E: | 0.10 mg |
| Vitamin K: | 13.3 mcg |
Phytonutrients:
| Phytosterols: | 6 mg |
| beta Carotene: | 164 mcg |
| beta Cryptoxanthin: | 0 mcg |
| Lycopene: | 0 mcg |
| Lutein and Zeaxanthin: | 152 mcg |
Source of Information: USDA National Nutrient Database for Standard Reference
Abbreviations:
| * g = gram |
| * mg = milligram |
| * mcg = microgram |
| * IU = International Unit |