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http://peykmagazine.com/en/wp-content/uploads/2020/09/Portion-size-matters-peyk-189.jpg1080140Educational Series The Science of Nutrition By Mohammad Ahrar, PhD Introduction When we eat delicious Iranian food, we sometimes forget how much (or, rather, how little) food we need to eat. Portion size and the caloric content in the amount of food that we eat are directly related to maintaining a healthy weight. The subject