All About Onionsfrom www.onions.org.uk
Composition of the Onion

* High in dietary fibre
* Low in calories - 23cal/100g
* Sugar - 5.2g/100g
* Starch - nil
* Fat Content - nil
* Cholesterol - nil
* Protein - 1.2g/100g
* Carbohydrate - 7.9g/100g
* Essential mineral: potassium, sodium, calcium, magnesium, iron, phosphorus, folic acid, selenium and zinc
* Vitamin B and high in Vitamin C