toddler portion size

[alabama]

hi
i was just wondering what will the exact/correct portion size for 2 yrs old.
whatever i give my son is not always accurate.sometimes he eats too less or sometimes too much
i know toddlers have different food habits and ways but to clear myself n acknowledge pls tell me regarding
veges
milk
juice
bread
rice etc...

thanx for ur suggestions

[Chickadee]

I try not to get too worried about how much my DD does or doesn't eat. Some days she picks and seems to eat very little, and other days she will have 2nd or 3rd helpings of something. So it's very hard to define a "portion".

My "Breast, Bottle Bowl" book suggests the following as example portions:

Bread & Cereals: 1 slice bread, 2 plain biscuits, 1/2 to 1 cup cereal, 1/2 cup cooked pasta or rice

Fruit: 1 piece (doesn't give size though:confused: ) or 125 ml fruit juice

Vegetables: 1/4 cup cooked veg, 1/2 potato, 1/2 carrot

Dairy: 200 ml milk, 200 g yogurt, 40 g cheese

Meat: 30g (1oz) meat fish or poultry, 1 egg, 1tbsp peanut butter, 1/2 baked beans.