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.
Protein (g) soymilk. Later in the article the CCF says, The average teenager needs between 46 and 52 grams of protein a day.. While it is true that the RDA for protein for teenagers aged 14 to 18 is 46 grams for females and 52 grams for males, the RDA is not a measure of what the average teenager needs.