Free NEAT Dietary Guidelines & Nutrient Intake Questions and Answers — Questions and Answers
Question 1: Which nutrient is considered essential for muscle repair and growth?
- Carbohydrates
- Fats
- Protein (Correct answer)
- Water
Correct answer: Protein
Protein is considered essential for muscle repair and growth because it is composed of amino acids, which are the fundamental building blocks of muscle tissue. After exercise, protein helps repair micro-tears in muscle fibers and synthesize new muscle proteins, facilitating recovery and hypertrophy.
Question 2: According to dietary guidelines, what percentage of daily calories should come from carbohydrates?
- 10–25%
- 25–35%
- 45–65% (Correct answer)
- 70–90%
Correct answer: 45–65%
According to most dietary guidelines, including those from the USDA, carbohydrates should constitute 45–65% of an adult's daily caloric intake. This range ensures the body receives sufficient energy for all its functions, as carbohydrates are the primary and most efficient source of fuel for the brain and physical activity.
Question 3: Which vitamin is primarily responsible for calcium absorption?
- Vitamin A
- Vitamin C
- Vitamin D (Correct answer)
- Vitamin K
Correct answer: Vitamin D
Vitamin D plays a crucial role in the body's ability to absorb calcium from the intestines. Without adequate Vitamin D, calcium absorption is impaired, which can lead to weakened bones and an increased risk of conditions like osteoporosis, highlighting its importance for bone health.
Question 4: What is the recommended daily intake of fiber for adults?
- 5–10 grams
- 15–20 grams
- 25–30 grams (Correct answer)
- 35–40 grams
Correct answer: 25–30 grams
The recommended daily intake of fiber for adults is generally between 25–30 grams, though specific recommendations can vary slightly based on age and gender. Adequate fiber intake is vital for maintaining digestive health, regulating blood sugar levels, and contributing to a healthy weight.
Question 5: Which of the following is a complete protein source?
- Brown rice
- Peanut butter
- Eggs (Correct answer)
- Lentils
Correct answer: Eggs
Eggs are considered a complete protein source because they contain all nine essential amino acids that the human body cannot produce on its own. These essential amino acids are provided in sufficient quantities, making eggs highly valuable for muscle synthesis, tissue repair, and overall bodily functions.
Question 6: Which mineral is most associated with oxygen transport in the blood?
- Calcium
- Potassium
- Magnesium
- Iron (Correct answer)
Correct answer: Iron
Iron is an essential mineral that forms a critical component of hemoglobin, the protein found in red blood cells. Hemoglobin's primary function is to bind oxygen in the lungs and transport it efficiently throughout the bloodstream to all body tissues. Without adequate iron, the body cannot produce enough healthy red blood cells, leading to impaired oxygen delivery and conditions like anemia.
Question 7: Which food is highest in saturated fat?
- Avocado
- Olive oil
- Butter (Correct answer)
- Almonds
Correct answer: Butter
Butter is a dairy product derived from animal fat and is notably high in saturated fat, which is solid at room temperature. In contrast, olive oil and avocado are rich in monounsaturated fats, while almonds contain a good balance of monounsaturated and polyunsaturated fats. Consuming excessive amounts of saturated fat, as found in butter, can contribute to elevated LDL ('bad') cholesterol levels.
Question 8: What is the primary role of carbohydrates in the body?
- Build muscle
- Provide energy (Correct answer)
- Regulate hormones
- Transport oxygen
Correct answer: Provide energy
Carbohydrates are the body's most efficient and preferred source of energy. They are broken down into glucose, which is then utilized by cells for immediate fuel, especially during physical activity and for brain function. While other macronutrients have vital roles, carbohydrates are specifically optimized to provide readily available energy for daily activities and exercise.
Question 9: Which nutrient helps maintain fluid balance in the body?
- Calcium
- Potassium
- Sodium (Correct answer)
- Zinc
Correct answer: Sodium
Sodium is a vital electrolyte that plays a critical role in maintaining the body's fluid balance, both inside and outside of cells. It works in conjunction with potassium to regulate blood pressure, nerve impulses, and muscle contractions. Proper sodium levels are essential for preventing dehydration or overhydration and ensuring overall physiological function.
Free NEAT Dietary Guidelines & Nutrient Intake Questions and Answers
Which nutrient is considered essential for muscle repair and growth?