Lettuce, cos or romaine, raw
Nutrition facts per 100 g and per 100 g · Vegetables and Vegetable Products
100 g of Lettuce, cos or romaine, raw provides 17 kcal, 1.24 g protein, 0.26 g fat and 3.24 g carbohydrate (1.8 g fiber). Per 100 g it is high in Vitamin K (85% DV), Vitamin A (RAE) (48% DV).
Protein 24%Fat 12%Carbohydrate 64%
Calculated from the grams above at 4 kcal/g for protein and carbohydrate and 9 kcal/g for fat, as a share of those three.
Percentage of the FDA Daily Value in one portion. Exact amounts are in the tables below.
What stands out
- Vitamin K: 102 µg per 100 g — 85% of the Daily Value. Other top sources →
- Vitamin A (RAE): 436 µg per 100 g — 48% of the Daily Value. Other top sources →
- Folate: 50 µg per 100 g — 12% of the Daily Value. Other top sources →
Before you use this number
- If you take anticoagulants, steady matters more than low. People taking warfarin and similar anticoagulants need a consistent vitamin K intake rather than a low one: sudden changes in either direction can increase or decrease the effect of the medicine. Evidence: vitk-04
- The upper limit does not apply to this number. The Tolerable Upper Intake Level of 3,000 mcg a day applies only to preformed vitamin A from animal sources and supplements, not to the carotenoids in plant foods. Intakes of preformed vitamin A above that level, and some retinoid medicines, can cause congenital birth defects. Evidence: vita-03 · vita-04
Energy and macronutrients
| Nutrient | per 100 g | per 100 g (100 g) | % DV per 100 g |
|---|---|---|---|
| Energy | 17 kcal | 17 kcal | |
| Protein | 1.24 g | 1.24 g | 2% |
| Total fat | 0.26 g | 0.26 g | 0% |
| Saturated fat | — g | — | |
| Monounsaturated fat | — g | — | |
| Polyunsaturated fat | — g | — | |
| Cholesterol | — mg | — | |
| Carbohydrate | 3.24 g | 3.24 g | 1% |
| Dietary fiber | 1.8 g | 1.8 g | 6% |
| Sugars (total) | 1.19 g | 1.19 g | |
| Water | 94.7 g | 94.7 g |
Vitamins
| Nutrient | per 100 g | per 100 g (100 g) | % DV per 100 g |
|---|---|---|---|
| Vitamin A (RAE) | 436 µg | 436 µg | 48% |
| Vitamin C | 4.6 mg | 4.6 mg | 5% |
| Vitamin D | — µg | — | |
| Vitamin E | 0.14 mg | 0.14 mg | 1% |
| Vitamin K | 102 µg | 102 µg | 85% |
| Thiamin (B1) | 0.08 mg | 0.08 mg | 7% |
| Riboflavin (B2) | 0.07 mg | 0.07 mg | 6% |
| Niacin (B3) | 0.32 mg | 0.32 mg | 2% |
| Vitamin B6 | 0.08 mg | 0.08 mg | 5% |
| Folate | 50 µg | 50 µg | 12% |
| Vitamin B12 | — µg | — | |
| Choline | — mg | — |
Minerals
| Nutrient | per 100 g | per 100 g (100 g) | % DV per 100 g |
|---|---|---|---|
| Calcium | 35 mg | 35 mg | 3% |
| Iron | 0.95 mg | 0.95 mg | 5% |
| Magnesium | 13.7 mg | 13.7 mg | 3% |
| Phosphorus | 30 mg | 30 mg | 2% |
| Potassium | 253 mg | 253 mg | 5% |
| Sodium | — mg | — | |
| Zinc | 0.25 mg | 0.25 mg | 2% |
| Copper | 0.05 mg | 0.05 mg | 5% |
| Selenium | 0.4 µg | 0.4 µg | 1% |
How much of your day is this? Daily Values are one reference for everyone. Bioma calculates your personal targets from your body, activity and goal, and shows every meal against them, from a photo. About Bioma →
Source and how to read this
Data: USDA FoodData Central, Foundation Foods, release 2025-12-18, FDC ID 746769 — laboratory-analysed sample. Described in USDA as Lettuce, cos or romaine, raw; we shorten these names for readability and keep the original here. Values are per 100 g of edible portion as USDA reports them; a serving may be more or less.
Portion: "100 g" = 100 g is the primary household measure USDA records for this food. Per-100 g values let you compare foods; per-portion values are closer to what you actually eat.
% Daily Value: FDA Daily Values for adults and children 4+ (FDA, page updated 2024-03-05). "High" means ≥20% DV and "good source" 10–19% DV — FDA's labelling cut-offs (21 CFR 101.54), which apply per serving; we apply the same cut-offs to 100 g so foods can be compared. No DV exists for energy or total sugars, so those show no percentage.
Checked: 2026-09-15. Methodology. Found an error? learn@humblebee.ltd