IIN Nutrition Science 1 — Questions and Answers
Question 1: Which macronutrient is the body’s primary source of energy?
- Protein
- Fat
- Carbohydrates (Correct answer)
- Vitamins
Correct answer: Carbohydrates
Carbohydrates are broken down into glucose, the main fuel for the body's cells and brain function.
Question 2: What role does dietary fiber play in digestion?
- Increases cholesterol
- Reduces stomach acid
- Supports digestive health (Correct answer)
- Causes nutrient loss
Correct answer: Supports digestive health
Fiber adds bulk to stool, helps maintain regular bowel movements, and supports gut health.
Question 3: Which vitamin is essential for calcium absorption?
- Vitamin C
- Vitamin K
- Vitamin D (Correct answer)
- Vitamin B12
Correct answer: Vitamin D
Vitamin D plays a key role in helping the body absorb and regulate calcium for bone health.
Question 4: Which mineral is necessary for oxygen transport in the blood?
- Zinc
- Iron (Correct answer)
- Sodium
- Iodine
Correct answer: Iron
Iron is a vital component of hemoglobin, the protein in red blood cells that carries oxygen.
Question 5: Which fat type is considered heart-healthy?
- Trans fats
- Saturated fats
- Unsaturated fats (Correct answer)
- Synthetic fats
Correct answer: Unsaturated fats
Unsaturated fats, such as those found in olive oil, nuts, and avocados, support heart health.
Question 6: Which nutrient supports immune function and collagen production?
- Vitamin A
- Vitamin C (Correct answer)
- Vitamin E
- Vitamin D
Correct answer: Vitamin C
Vitamin C plays a key role in immune defense and helps the body synthesize collagen for skin and tissue repair.
IIN Nutrition Science 1
Which macronutrient is the body’s primary source of energy?