<human>:  I am looking for a guide to determine proper portion sizes for meals.
<bot>: A great way to determine proper portion sizes for meals is to use a visual guide. A simple way to do this is to measure your food using your hand or using measuring cups or spoons. Looking at the size of your fist can help you determine how much of a certain food to serve. Another way to quickly measure a portion size is to use your plate. Half of the plate should be filled with vegetables, a quarter with the main entrée and a quarter with a starch. Finally, use the right size of plate. A smaller plate may be a useful tool when it comes to figuring out the right portion size.