AFAA Nutrition and Weight Management 1 — Questions and Answers
Question 1: How many calories are provided per gram of carbohydrate?
- 2 calories
- 4 calories (Correct answer)
- 7 calories
- 9 calories
Correct answer: 4 calories
Carbohydrates and proteins both provide 4 calories per gram, while fat provides 9 calories per gram.
Question 2: Which macronutrient is the preferred fuel source during moderate-to-high intensity aerobic exercise?
- Fat
- Protein
- Carbohydrate (Correct answer)
- Alcohol
Correct answer: Carbohydrate
Carbohydrates (stored as glycogen) are the primary and most efficient fuel for moderate-to-high intensity aerobic exercise.
Question 3: What is the general recommended daily water intake for physically active adults in the US?
- 1–2 cups per day
- 4–6 cups per day
- 8–13 cups per day (Correct answer)
- 20+ cups per day
Correct answer: 8–13 cups per day
Active adults generally need 8–13 cups (2–3 liters) of fluid daily, with additional amounts to replace sweat losses.
Question 4: A caloric deficit of approximately 3,500 calories is associated with a loss of how much body fat?
- 0.5 pound
- 1 pound (Correct answer)
- 2 pounds
- 5 pounds
Correct answer: 1 pound
A deficit of approximately 3,500 calories corresponds to roughly 1 pound of stored fat, forming the basis of the 500-cal/day deficit rule.
Question 5: Which vitamin is primarily synthesized by the skin through sun exposure?
- Vitamin A
- Vitamin B12
- Vitamin C
- Vitamin D (Correct answer)
Correct answer: Vitamin D
Vitamin D is produced in the skin when exposed to ultraviolet B (UVB) radiation and is essential for calcium absorption and bone health.
Question 6: Body mass index (BMI) is calculated as:
- Weight (lb) ÷ height (in)
- Weight (kg) ÷ height² (m²) (Correct answer)
- Height (cm) ÷ weight (kg)
- Weight (lb) × height (ft)
Correct answer: Weight (kg) ÷ height² (m²)
BMI = weight in kilograms divided by height in meters squared, providing a simple screening tool for weight classification.
AFAA Nutrition and Weight Management 1
How many calories are provided per gram of carbohydrate?