It has no fat and is low in kilojoules. Leeks are a good source of vitamin C and provide dietry fibre and small amounts of a number of other vitamins and minerals. Lettuce provides some potassium, carotene, dietry fibre and small quantities of other minerals and vitamins. It has very few kilojoules. Onions are a good source of vitamin C, B3 and calcium.
Parsnips are an excellant source of vitamin C and a good source of dietry fibre and folic acid.
They contain some potassium, riboflavin, iron and niacin. An excellant source of vitamin C and a good source of dietry fibre, folic acid and thiamine, peas are also a usefull source of niacin, iron, zinc and protein. Potatoes are a good source of complex carbohydrates, vitamin C and dietry fibre and supply good amounts od potassium, magnesium, niacin and thiamine. Their reputation for being fattening is quite undeserved. Its not the potatoes which are at fault, but the way they are cooked.