Nutrition and Vitamins Quiz

Which nutrient is the primary source of energy for the body and fuels the brain and muscles?

• Protein

• Fat

• Carbohydrate

• Vitamin C

Answer explanation

Carbohydrates are the body's primary energy source, providing fuel for the brain and muscles. Unlike proteins and fats, carbohydrates are quickly converted into glucose, which is essential for energy.

Which of the following is a main function of protein in the body?

• Provides energy

• Growth and repair of body tissues

• Maintains vision

• Aids calcium absorption

Answer explanation

Proteins are essential for the growth and repair of body tissues, making this the main function of protein in the body. While proteins can provide energy, their primary role is in tissue maintenance and repair.

Which food is a source of Vitamin B3?

• Poultry

• Broccoli

• Carrots

• Sunlight

Answer explanation

Poultry is a rich source of Vitamin B3 (niacin), which is essential for energy metabolism and overall health. In contrast, broccoli and carrots provide other vitamins, and sunlight is not a food source.

Which vitamin supports brain development and immune function?

• Vitamin B6

• Vitamin D

• Vitamin E

• Vitamin K

Answer explanation

Vitamin B6 is essential for brain development and supports immune function by aiding in the production of neurotransmitters and immune cells, making it the correct choice among the options provided.

Which vitamin is important for red blood cell formation and supports nerve function?

• Vitamin B12

• Vitamin C

• Vitamin D

• Vitamin E

Answer explanation

Vitamin B12 is crucial for red blood cell formation and also plays a key role in maintaining nerve function, making it the correct choice among the options provided.

What is the main function of folate/folic acid?

• Supports immune system

• DNA synthesis and cell division

• Maintains vision

• Absorbs fat-soluble vitamins

Answer explanation

The main function of folate/folic acid is DNA synthesis and cell division, which are crucial for growth and development, especially during pregnancy.

Which food is a source of folate/folic acid?

• Meat

• Leafy greens

• Eggs

• Fish

Answer explanation

Leafy greens are rich in folate, a vital B-vitamin important for cell division and overall health. While meat, eggs, and fish contain some nutrients, they are not significant sources of folate compared to leafy greens.

Citrus fruits are a good source of which vitamin?

• Vitamin A

• Vitamin C

• Vitamin D

• Vitamin E

Answer explanation

Citrus fruits, such as oranges and lemons, are well-known for their high vitamin C content, which is essential for immune function and skin health. Therefore, the correct answer is Vitamin C.

Which vitamin aids calcium absorption and supports bone health?

• Vitamin C

• Vitamin D

• Vitamin E

• Vitamin B6

Answer explanation

Vitamin D is essential for calcium absorption in the intestines and plays a crucial role in maintaining bone health. Without sufficient vitamin D, bones can become weak and brittle.

What is a source of Vitamin D?

• Sunlight

• Poultry

• Whole grains

• Broccoli

Answer explanation

Sunlight is a primary source of Vitamin D, as the skin synthesizes it when exposed to UV rays. Other options like poultry, whole grains, and broccoli do not provide significant amounts of Vitamin D.