#1
Which nutrient is the body's primary source of energy?
Carbohydrate
ExplanationCarbohydrates are the main source of energy for the body, providing fuel for various physiological functions.
#2
What is the recommended daily intake of fiber for adults?
30 grams
ExplanationAdults should aim for a daily intake of 30 grams of fiber, promoting digestive health and overall well-being.
#3
What is the main function of carbohydrates in the body?
Provide energy
ExplanationCarbohydrates primarily serve as a source of energy for the body's day-to-day activities and metabolic functions.
#4
Which of the following nutrients is classified as a macronutrient?
Protein
ExplanationProteins are macronutrients, essential for building and repairing tissues, as well as supporting various bodily functions.
#5
Which nutrient is primarily responsible for building and repairing tissues in the body?
Protein
ExplanationProteins are essential for building and repairing tissues, serving as the building blocks for muscles, organs, and other structures.
#6
What is the function of vitamin K in the body?
Supports blood clotting
ExplanationVitamin K plays a crucial role in supporting blood clotting, which is essential for wound healing and preventing excessive bleeding.
#7
Which vitamin is essential for calcium absorption?
Vitamin D
ExplanationVitamin D is crucial for the absorption of calcium, playing a key role in bone health and mineral metabolism.
#8
What is the primary function of antioxidants in the body?
To protect against cell damage
ExplanationAntioxidants help protect cells from damage caused by free radicals, contributing to overall health.
#9
What is the recommended daily intake of sodium for adults?
Less than 1 gram
ExplanationAdults are advised to limit daily sodium intake to less than 1 gram, promoting cardiovascular health and preventing related issues.
#10
Which fatty acid is considered essential and must be obtained from the diet?
Linoleic acid
ExplanationLinoleic acid is an essential fatty acid, crucial for health, and must be obtained through the diet since the body cannot produce it.
#11
Which mineral is essential for the formation of hemoglobin in red blood cells?
Iron
ExplanationIron is essential for the formation of hemoglobin in red blood cells, facilitating oxygen transport throughout the body.
#12
What is the primary function of omega-3 fatty acids in the body?
Promote heart health
ExplanationOmega-3 fatty acids play a key role in promoting heart health by reducing inflammation, improving cholesterol levels, and supporting overall cardiovascular function.
#13
Which mineral is important for nerve function and muscle contraction?
Magnesium
ExplanationMagnesium is essential for nerve function and muscle contraction, playing a vital role in various physiological processes.
#14
What is the function of B vitamins in the body?
Support metabolism
ExplanationB vitamins play a key role in supporting metabolism, energy production, and various biochemical processes in the body.
#15
Which vitamin is synthesized by the body upon exposure to sunlight?
Vitamin D
ExplanationVitamin D is synthesized by the body when exposed to sunlight, playing a crucial role in calcium absorption and bone health.
#16
Which mineral is a component of hemoglobin and myoglobin, enabling oxygen transport in the body?
Iron
ExplanationIron is a component of hemoglobin and myoglobin, crucial for transporting oxygen in the blood and muscles.
#17
Which mineral is essential for the synthesis of thyroid hormones?
Iodine
ExplanationIodine is essential for the synthesis of thyroid hormones, crucial for the proper functioning of the thyroid gland.