Diet and Nutrition

Start Your Free Trial

Would "carbohydrates" be the correct answer to the nutrient that is the most energy efficient and also to which is the most energy densed?

Expert Answers info

justaguide eNotes educator | Certified Educator

calendarEducator since 2010

write12,544 answers

starTop subjects are Math, Science, and Business

I do not know what you imply by the terms "energy efficient" and "energy densed."

In terms of the amount of energy that nutrients contain, there are three nutrients that can provide energy. These are carbohydrates, proteins and fats.

Carbohydrates contain the least amount of energy at 3.75 kilocalories per gram, proteins have a higher amount of energy at 4 kilocalories per gram and fats have the maximum at 9 kilocalories per gram.

The body, though, is able to extract energy from carbohydrates in the easiest manner as compared to proteins and fats. This is the reason why carbohydrates are first used as a source of energy and only when they get exhausted does the body move to extracting energy from proteins and fats.

check Approved by eNotes Editorial

ttwj | Student

No, fats. It contains more energy than carbohydrates/proteins when burnt by the body.

Unlock This Answer Now