Edible parts
Leaves
Nutrition per 100 g
Food data (CoFID / USDA). % NRV is UK where a reference exists. Curiosity about the plant — not a diary score.
| Nutrient | Per 100 g | % NRV (UK) |
|---|---|---|
| Energy | 54 kJ / 13 kcal | 1% |
| Protein | 1.4 g | 3% |
| Carbohydrate | 2.2 g | 1% |
| Fibre | 1.1 g | — |
| Natural sugars | 0.9 g | — |
| Fat | 0.2 g | — |
| Vitamin A | 166 µg RE | 21% |
| Vitamin C | 3.7 mg | 5% |
| Vitamin K | 102 µg | 136% |
| Folate | 73 µg | 37% |
| Calcium | 35 mg | 4% |
| Iron | 1.2 mg | 9% |
| Magnesium | 13 mg | 3% |
| Potassium | 238 mg | 12% |
| Zinc | 0.18 mg | 2% |
| Sodium | 5 mg | — |
Per 100 g · CoFID / USDA · % NRV UK · not medical advice
Prep notes
Eaten as sold or prepared at home. Atlas figures are per 100 g food data (CoFID / USDA), not a cooked dish with oil or salt unless the row says so.
Season
Year-round grocery when this catalogue row is listed as common / pantry.
Caution
Grocery / shop food data only. Not a wild forage guide. Thrive shows composition curiosity — not medical advice.
Answer-ready
Butter lettuce (Lactuca sativa; SK Maslový šalát) is listed in Thrive’s plant atlas under leafy. Nutrition below is per 100 g with % NRV (UK) where a reference exists — food data for curiosity, not a diary score or medical claim. Edible part covered here: Leaves.