✦ Quercetin
✦ Sulphur compounds
✦ Prebiotic fibre
✦ Low calorie
Onions are alliums that provide quercetin, sulphur compounds and prebiotic fibres such as inulin, which feed gut bacteria. They are low in calories and add flavour with few drawbacks.
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Preparation note
Baking concentrates natural sugars and gives a sweet flavour; some vitamin C and pungent sulphur compounds are lost to the heat.
Sources:
CoFID 2021
Where Onions, baked Stands Out
Micronutrient
Potassium
172 mg
per 100g · tap to explore →
Micronutrient
Chloride
67.0 mg
per 100g · tap to explore →
Micronutrient
Calcium
37.0 mg
per 100g · tap to explore →
Micronutrient
Phosphorus
29.0 mg
per 100g · tap to explore →
Flavonols
Quercetin
26.9 mg
per 100g · USDA Flavonoid DB 3.3 (2018); NDB_No 99081 · tap to explore →
Macronutrients per 100g
185
kJ
Energy
1.20
g
Protein
9.90
g
Carbs
1.40
g
Fibre
0.20
g
Fat
7.70
g
Sugars
0.01
g
Salt
Vitamins & Minerals
| Nutrient | Per 100g | % Daily Value* | Level |
|---|---|---|---|
| Potassium | 172 mg | 9% | |
| Chloride | 67.0 mg | 8% | |
| Calcium | 37.0 mg | 5% | |
| Phosphorus | 29.0 mg | 4% | |
| Folate | 11.0 µg | 6% | |
| Magnesium | 10.0 mg | 3% | |
| Vitamin C | 3.00 mg | 4% | |
| Vitamin A (RAE) | 1.00 µg | 0% | |
| Iron | 0.370 mg | 3% | |
| Vitamin E (alpha-TE) | 0.360 mg | 3% | |
| Niacin (B3) | 0.300 mg | 2% | |
| Zinc | 0.200 mg | 2% | |
| Manganese | 0.120 mg | 6% | |
| Thiamin (B1) | 0.110 mg | 10% | |
| Vitamin B6 | 0.100 mg | 7% | |
| Copper | 0.050 mg | 5% | |
| Pantothenic Acid (B5) | 0.040 mg | 1% | |
| Riboflavin (B2) | 0.020 mg | 1% | |
| Vitamin B12 | 0.000 µg | 0% | |
| Vitamin D | 0.000 µg | 0% | |
| Iodine | 2.00 µg | 1% | |
| Polyunsaturated fat (PUFA) | 0.090 g | — | |
| Trans fat | 0.000 g | — | |
| Glucose (dextrose) | 2.90 g | — | |
| Sucrose | 2.60 g | — | |
| Fructose | 2.20 g | — | |
| Cholesterol | 0.000 mg | — | |
| Beta-carotene | 12.0 µg | — | |
| Biotin (Vitamin B7) | 1.00 µg | 2% | |
| Retinol (vitamin A) | 0.000 µg | 0% |
* % Daily Value based on EU Nutrient Reference Values (NRVs). — indicates no EU NRV established.
Primary data source for this entry:
McCance & Widdowson's Composition of Foods Integrated Dataset (CoFID 2021), Public Health England. Source record tag: CoFID 2021.
Phytochemical data: USDA Flavonoid Database Release 3.3 (2018) and published analytical literature as indicated on each compound.
All values are per 100g fresh weight unless stated.
% Daily Values based on EU Nutrient Reference Values (NRVs) per Regulation (EU) No 1169/2011.
Nutriofia is a research and information resource — nothing on this page constitutes medical advice.
Page generated from Nutriofia database · Argarth Collective Ltd · Company No. 16864945.