Edible parts
Spice 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 | 2125 kJ / 508 kcal | 25% |
| Protein | 26.1 g | 52% |
| Carbohydrate | 28.1 g | 11% |
| Fibre | 12.2 g | — |
| Natural sugars | 6.8 g | — |
| Fat | 36.2 g | 52% |
| Omega-3 (ALA) | 3.8 g | — |
| Vitamin A | 3 µg RE | — |
| Vitamin C | 7 mg | 9% |
| Vitamin E | 5.1 mg | 43% |
| Vitamin K | 5.4 µg | 7% |
| Folate | 162 µg | 81% |
| Vitamin B6 | 0.4 mg | 29% |
| Calcium | 266 mg | 33% |
| Iron | 9.2 mg | 66% |
| Magnesium | 370 mg | 99% |
| Potassium | 738 mg | 37% |
| Zinc | 6.1 mg | 61% |
| Selenium | 208 µg | 378% |
| Sodium | 13 mg | — |
Per 100 g · CoFID / USDA · % NRV UK · not medical advice
Prep notes
Fat and selenium in a tiny seed. Temper in oil until it pops — that’s the flavour. Yellow mustard is a milder sister. The greens are a separate leaf.
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
Mustard seed (Brassica juncea; SK Horčičné semienko) is listed in Thrive’s plant atlas under spice. 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: Spice as sold.