Children have smaller bodies than adults, naturally, so kids need to consume fewer calories to use as fuel. The best way to help children consume fewer calories is to reduce portion sizes but all the weighing and measuring of food is a real pain. One “handy” way to measure portion sizes is to use the hand
as a guide to apportioning food, where a portion of fruits or vegetables is about the size of the consumer’s fist and a portion of meat is about the size of their palm. This quick tip helps to calibrate the portion size to the size of the consumer’s body quickly and without the inconvenience of measuring and weighing food.