Biology · General Awareness

Nutrition and Food Sources

2,818 Questions

Nutrition and Food Sources questions test your knowledge of vitamins, dietary minerals, carbohydrates, and specialized dietary principles. This topic is commonly asked in railway, SSC, and UPSC exams. Review these questions to master the biological and health aspects of human nutrition.

Vitamins and mineralsDietary fiber sourcesMacronutrient functionsNaturopathic diet principlesOmega-3 fatty acids

Nutrition and Food Sources Questions

Multiple choice

Directions: Read the following passage and answer the question that follows.

Our hair is exposed to a lot of pollution, climatic conditions, etc. Therefore, caring is a must for hair. Experts say you are what you eat. A balanced diet of protein, vitamins and minerals is the best way to get all the nutrients needed for a healthy body, skin and hair. Omega-3 and Omega-6 improve hair texture, while lack of these will cause dandruff and dull hair. Nuts, seeds, olive oil and avocados are rich in fatty acids. Eating enough of oily fish like salmon, sardines or mackerel, or taking fish oil supplements, because it helps on all sorts of levels as what goes inside your body directly affects how your hair grows.

Healthy is a/an

  1. adjective

  2. adverb

  3. noun

  4. pronoun
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It is a degree of health. Thus, option (1) is the correct answer.

Multiple choice

Doctors advise that excess intake of tomatoes, eggs, milk, cabbage, etc. should be avoided in case of persons with kidney stones, bladder stones, etc. This is done to prevent the formation of crystals of

  1. calcium phosphate.

  2. calcium oxalate.

  3. calcium chloride.

  4. calcium sulphate.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Kidney stones are generally made up of calcium oxalate and due to imbalance of fluids. They occur when there is too much calcium in the urine.

Multiple choice

Iron which is necessary for the body has a rich source in

  1. Mutton

  2. Curd

  3. Green leafy vegetables

  4. Potato
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Green leafy vegetables (Option C) are indeed rich sources of iron, which is essential for hemoglobin formation and preventing anemia. Options like mutton, curd, and potato are not as iron-dense as leafy greens such as spinach, kale, and fenugreek.

Multiple choice

In the passage above, the main idea is to

Directions: Read the following passage and answer the question that follows.

Not everybody has a taste for water, but we all need it to ensure that our bodies continue functioning properly. If you want to drink more water, but aren't crazy about the taste (or lack thereof), here are some tips that can make it more enjoyable:
1. Add fresh fruit. Citrus fruits, such as lemons, limes, and oranges, are classic water enhancers, but other fruit flavors might also tempt your taste buds. Try crushing fresh raspberries or watermelon into your water, or adding strawberry slices. Cucumber and fresh mint are refreshing flavors as well — especially in summer.
2. Use juice. Any fruit juice can be a good base flavor for water, but tart juices, like cranberry, pomegranate, grape, and apple, are especially delicious. Go for juices that are all natural, with no added sugars. And remember: Fruits and their juices don't just taste good — they contain vitamins and antioxidants that can benefit your health too.

  1. develop a taste for water

  2. eat fruits only

  3. combine fruits with water only

  4. drink flavoured water only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main idea of the passage is to develop a taste for water and many methods are given to do so.

Multiple choice

Which of the following foods is rich in carbohydrates?

  1. Rice

  2. Coconut

  3. Egg white

  4. Papaya

  5. Milk
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbohydrates change into sugar in human body that burn with oxygen in cells of our body and give us energy. So, carbohydrates are called energy giving foods. Eg. rice, wheat and maize.

Multiple choice

Directions: The following question consists of certain statements. You have to select the option representing the most logical sequencing of the given statements.

A. A balanced diet is necessary for good health. B. However, a balanced diet does not consist of vitamins only. C. Vitamins prevent deficiency diseases. D. Proteins too are important ingredient in a balanced diet.
E. Regular consumption of vitamins is essential. F. Vitamins are important ingredients of a balanced diet.

  1. BCD

  2. ABC

  3. CEF

  4. FBD
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Option (3) CEF C → Vitamins prevent deficiency diseases. E → Regular consumption of vitamins is essential. F → Vitamins are important ingredients of a balanced diet. Though a new concept 'balanced diet' has been introduced in sentence F but logically it is related to first two sentences by virtue of keyword vitamin existing in all three sentences. On the other hand, for option (4) FBD F → Vitamins are important ingredients of balanced diet. B → However, a balanced diet does not consist of vitamins only. D → Proteins too are ingredients in a balanced diet. Though these three sentences has a keyword 'Balanced Diet' relating but a specific example of protein as important part of the balanced diet is too big of consumption, than one we did in previous case. This implies option (3) is the correct answer.

Multiple choice

Which of the following is the source of lactic acid?

  1. Milk

  2. Tea

  3. Vitamin C

  4. Coffee
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lactic acid is naturally found in milk and dairy products. It is produced through bacterial fermentation of lactose (milk sugar). Tea, coffee, and Vitamin C do not contain lactic acid.

Multiple choice

________ and ________ are examples of enriched media.

  1. Blood agar, Hektoen Enteric Agar

  2. Eosin Methylene Blue agar, Mannitol salt agar

  3. Hektoen Enteric Agar, Mannitol salt agar

  4. Eosin Methylene Blue agar, MacConkey agar

  5. Blood agar, Chocolate agar
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Blood agar is both a differential and an enriched medium. The blood that is incorporated into this medium is an enrichment ingredient for the cultivation of fastidious organisms such as the Streptococcus species. Chocolate agar is an enriched culture media commonly used for primary isolation of Haemophilus species from clinical specimens.

Multiple choice

Which among following contains the highest amount of proteins?

  1. Meat

  2. Green leaf vegetables

  3. Orange

  4. Soyabeans

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soybeans are among the richest plant sources of protein, containing approximately 36-56% protein by weight. This is significantly higher than meat (which has high protein but also high fat and water content), green leafy vegetables (which are primarily fiber and water with modest protein), or oranges (which are mainly carbohydrates with minimal protein). Soybeans are a complete protein source, making them particularly valuable in vegetarian diets.