1. the act of attenuating or the state of being attenuated. 2. (General Physics) the loss of energy suffered by radiation as it passes through matter, esp as a result of absorption or scattering.
A healthy teenage boy may have a higher calorie intake of about 2,200 calories per day; about 61 to 86 g of fat should be consumed. Read more: http://www.livestrong.com/article/399246-a-teen-needs-how-many-grams-of-fat-per-day/#ixzz2QFhZ92Aj. For both teenage boys and girls, 5 to 6 tsp. of fat are recommended daily. Fat can't always be measured by the teaspoon, however, so it is easier to think of fat in actual percentages.
Grains and Fats. Teenagers need a variety of foods from the grains and healthy fats, or oils, groups daily. Teens eating 2,200 calories daily need 7 ounces from the grains group and 6 teaspoons from the oils group, while teens consuming 2,800 calories daily should aim for 10 ounces of grains and 8 teaspoons of oils.any U.S. teens eat too few fruits and vegetables. Photo Credit Hemera Technologies/AbleStock.com/Getty Images. Getting the right amount of calories and healthy foods daily helps ensure that teens get the proper nutrition they need to grow and develop at an appropriate pace -- while avoiding excess weight.