What area of science compares and describes quantities and movements of matter and energy?

Fast Food often contains more sodium, carbs and sugar counts than most home cooked or healthy meals. For kids whos parents are on a budget, fast food is the often option for meals, causing calorie counts to build up, eventually turning into stages of obesity. The average child calorie intake is between 1,600-2,500 per day. It is also recommended that children under age 18 should refrain from sodium counts higher than 2,200 per day. For one meal at McDonalds, to get a cheeseburger, fries and a coca-cola beverage, you are looking at around 1,100 calories and 1,200 mg of sodium. If the child eats this two times a day, the total calorie count would be above the national average, therefore causing the child to gain weight off the extra calories.