Edible parts
Spice as sold
Nutrition per 100 g
Food data (CoFID / USDA). Energy and macros show % RI; vitamins and minerals show % NRV (UK) where a reference exists. Curiosity about the plant — not a diary score.
Reference intake
Reference intake of an average adult (8 400 kJ / 2 000 kcal)
| Nutrient | Per 100 g | % RI |
|---|---|---|
| Energy | 1427 kJ / 341 kcal | 17% |
| Protein | 10.4 g | 21% |
| Carbohydrate | 79.1 g | 30% |
| Natural sugars | 6.63 g | 7% |
| Fat | 1.04 g | 1% |
| Saturated fat | 0.22 g | 1% |
Fibre, fats & omega-3
| Nutrient | Per 100 g |
|---|---|
| Fibre | 15.2 g |
| Monounsaturated fat | 0.2 g |
| Polyunsaturated fat | 0.31 g |
| Omega-3 (ALA) | 0.02 g |
Vitamins & minerals
| Nutrient | Per 100 g | % NRV (UK) |
|---|---|---|
| Vitamin C | 23.4 mg | 29% |
| Vitamin E | 0.27 mg | 2% |
| Vitamin K | 4.1 µg | 5% |
| Folate | 64 µg | 32% |
| Thiamin (B1) | 0.46 mg | 42% |
| Riboflavin (B2) | 0.08 mg | 6% |
| Niacin (B3) | 0.32 mg | 2% |
| Pantothenic acid (B5) | 0.73 mg | 12% |
| Vitamin B6 | 0.72 mg | 51% |
| Choline | 39 mg | — |
| Calcium | 384 mg | 48% |
| Iron | 3.9 mg | 28% |
| Magnesium | 113 mg | 30% |
| Potassium | 985 mg | 49% |
| Zinc | 4.05 mg | 41% |
| Copper | 0.59 mg | 59% |
| Manganese | 1.3 mg | 65% |
| Phosphorus | 322 mg | 46% |
| Selenium | 14.3 µg | 26% |
| Sodium | 73 mg | — |
µg is 1,000× smaller than mg — compare the % daily value, not the raw numbers. More
Vitamin D: plants have about none (the source rows say 0). UV-exposed mushrooms are the exception, and fortified packs vary, so check the pack.
Per 100 g · CoFID / USDA · % RI and % NRV UK · not medical advice
Figures: Spices, onion powder (USDA FDC SR Legacy 171327). Nutrients the row does not report are left blank.
Prep notes
Dehydrated onion. Calcium and potassium in a shaker. A burger-spice staple. Fresh onion is the vegetable; this is the pantry version.
Caution
Grocery / shop food data only. Not a wild forage guide. Thrive shows composition curiosity — not medical advice.
Answer-ready
Onion powder (Allium cepa) 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.