Edible parts
Nuts / seeds as sold
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 | 820 kJ / 196 kcal | 10% |
| Protein | 1.6 g | 3% |
| Carbohydrate | 44.2 g | 17% |
| Fibre | 5.8 g | — |
| Natural sugars | 10.6 g | — |
| Fat | 1.3 g | 2% |
| Omega-3 (ALA) | 0.06 g | — |
| Vitamin A | 1 µg RE | — |
| Vitamin C | 40 mg | 50% |
| Vitamin E | 0.5 mg | 4% |
| Vitamin K | 7.8 µg | 10% |
| Folate | 58 µg | 29% |
| Vitamin B6 | 0.35 mg | 25% |
| Calcium | 19 mg | 2% |
| Iron | 0.94 mg | 7% |
| Magnesium | 30 mg | 8% |
| Potassium | 484 mg | 24% |
| Zinc | 0.49 mg | 5% |
| Sodium | 2 mg | — |
Per 100 g · CoFID / USDA · % NRV UK · not medical advice
Prep notes
The starchy forest nut — low fat, real vitamin C, potassium like a banana. Roast or boil; raw they are tacky. Horse chestnut is toxic and not this tree. Usually prepared before eating. Per 100 g figures match this catalogue row.
Season
Often seasonal where grown; year-round when imported or stored.
Caution
Grocery / shop food data only. Not a wild forage guide. Thrive shows composition curiosity — not medical advice.
Answer-ready
Sweet chestnut (Castanea sativa; SK Jedlý gaštan) is listed in Thrive’s plant atlas under nut-seed. 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: Nuts / seeds as sold.