#1
What is the recommended daily intake of water for an adult?
2 liters
ExplanationAdequate hydration supports bodily functions, and the general guideline is to consume 2 liters of water daily.
#2
Which nutrient is essential for maintaining healthy bones and teeth?
Calcium
ExplanationCalcium is crucial for bone and teeth health, playing a key role in maintaining their strength and structure.
#3
What is the primary function of the immune system?
Fighting off infections
ExplanationThe immune system's main role is to defend the body against infections by identifying and neutralizing pathogens.
#4
Which of the following is a major risk factor for cardiovascular disease?
High blood pressure
ExplanationHigh blood pressure is a significant risk factor for cardiovascular disease, increasing the likelihood of heart attacks and strokes.
#5
What is the purpose of stretching before exercise?
To warm up muscles
ExplanationStretching before exercise helps warm up muscles, increase flexibility, and reduce the risk of injury during physical activity.
#6
Which of the following is a micronutrient?
Vitamin C
ExplanationVitamin C is a micronutrient, essential for immune function, collagen synthesis, and antioxidant activity.
#7
What is the recommended duration of moderate-intensity aerobic exercise per week for adults?
60 minutes
ExplanationEngaging in 60 minutes of moderate-intensity aerobic exercise weekly promotes cardiovascular health and overall well-being.
#8
Which of the following is NOT a component of physical fitness?
Mental agility
ExplanationWhile mental agility is important, it is not considered a component of physical fitness, which typically includes cardiovascular endurance, strength, flexibility, and body composition.
#9
What is the ideal ratio of HDL to LDL cholesterol for heart health?
2:1
ExplanationMaintaining a ratio of 2:1 or lower of HDL (good) to LDL (bad) cholesterol is considered beneficial for heart health.
#10
Which of the following vitamins is fat-soluble?
Vitamin D
ExplanationVitamin D is a fat-soluble vitamin, essential for calcium absorption, bone health, and immune function.
#11
What is the body's main source of quick energy during exercise?
Carbohydrates
ExplanationCarbohydrates are the body's primary source of quick energy, making them crucial for sustained physical activity.
#12
Which of the following is NOT a symptom of dehydration?
Increased thirst
ExplanationIncreased thirst is a symptom of dehydration; other signs include dark urine, dry mouth, and fatigue.
#13
What is the recommended daily intake of fruits and vegetables for adults?
5-6 servings
ExplanationConsuming 5-6 servings of fruits and vegetables daily provides essential vitamins, minerals, and fiber for overall health.
#14
What is the recommended daily intake of fiber for adults?
30-35 grams
ExplanationConsuming 30-35 grams of fiber daily supports digestive health, helps control blood sugar levels, and may aid in weight management.
#15
What is the recommended daily intake of sodium for adults?
Less than 2000 mg
ExplanationLimiting daily sodium intake to less than 2000 mg helps maintain heart health and reduce the risk of high blood pressure.
#16
What is the recommended daily intake of protein for sedentary adults?
0.5-0.8 grams per kilogram of body weight
ExplanationSedentary adults should aim for a daily protein intake of 0.5-0.8 grams per kilogram of body weight to support basic bodily functions.