Multiple Choice Questions
Nutrition and Athletic Performance (Continued)
Topic: Nutrition and Athletic Performance
Grade: 12
Question 1:
Which of the following macronutrients provides the most energy per gram?
a) Carbohydrates
b) Proteins
c) Fats
d) Fiber
Answer: c) Fats
Explanation: Fats provide the most energy per gram compared to the other macronutrients. While carbohydrates and proteins provide 4 calories per gram, fats provide 9 calories per gram. This is because fats have a higher energy density due to their chemical structure. For example, if an athlete consumes 1 gram of fat, they will get 9 calories of energy from it. In contrast, consuming 1 gram of carbohydrates or proteins will provide only 4 calories of energy.
Example 1: A runner who is preparing for a marathon includes a high-fat diet in their training plan. By consuming foods rich in healthy fats such as avocados and nuts, they ensure a higher intake of energy-dense nutrients, which can help them sustain their energy levels during long-distance running.
Example 2: A weightlifter who needs to meet their calorie requirements consumes a high-fat diet to ensure they are in a caloric surplus for muscle growth. Since fats provide more energy per gram, they can consume a smaller volume of food while still meeting their energy needs. This allows them to focus on consuming enough protein for muscle repair and growth without feeling overly full.