Question: how much grains should a 12 year old eat?
Answer: Eat 5 ounces of grains if you're a girl 9 to 13 years old (or 6 ounces if you're 14 to 18 years old). Some examples of an ounce of grains include: half an English muffin, a slice of bread, a package of instant oatmeal, or a quarter of a large bagel. Learn more about what counts as an ounce of grains.