Biology ยท 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

Which of these nuts is a rich source of omega-3 fatty acids?

  1. Peanut

  2. Hazelnut

  3. Macadamia nut

  4. Walnut
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Walnuts, especially English walnuts (Juglans regia), are known for their high content of omega-3 fatty acids, particularly alpha-linolenic acid (ALA). Omega-3 fatty acids are essential fatty acids that play a crucial role in human health, supporting brain function, heart health, and reducing inflammation.

Multiple choice

Which of these seeds is commonly used as a thickener in soups and stews?

  1. Chia seeds

  2. Flax seeds

  3. Sesame seeds

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

Chia seeds, obtained from the plant Salvia hispanica, are known for their gelling properties. When soaked in liquid, they absorb water and form a gel-like substance. This property makes them a popular ingredient in various dishes, particularly soups and stews, where they act as a thickener and add a slightly nutty flavor.

Multiple choice

Which of these nuts is a good source of dietary fiber?

  1. Almond

  2. Cashew

  3. Peanut

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

Almonds are a rich source of dietary fiber, both soluble and insoluble. Dietary fiber is important for maintaining a healthy digestive system, promoting regularity, and supporting overall gut health.

Multiple choice

Which of the following foods is a good source of omega-3 fatty acids, which are beneficial for heart health and cognitive function?

  1. Lean beef

  2. Salmon

  3. Eggs

  4. Whole wheat bread
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Salmon is an excellent source of omega-3 fatty acids, which are essential fatty acids that play a crucial role in heart health and cognitive function.

Multiple choice

Which of the following is NOT a common type of plant-based meat alternative?

  1. Tofu

  2. Tempeh

  3. Seitan

  4. Quorn
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Quorn is a brand name for a meat alternative made from mycoprotein, a type of fungus. Tofu, tempeh, and seitan are all made from plant-based ingredients.

Multiple choice

What is the main benefit of consuming plant-based foods over traditional animal-based foods?

  1. Lower risk of heart disease

  2. Reduced risk of certain types of cancer

  3. Lower environmental impact

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant-based foods are generally lower in saturated fat and cholesterol than animal-based foods, which can help reduce the risk of heart disease. They are also high in fiber, which can help reduce the risk of certain types of cancer. Additionally, plant-based foods have a lower environmental impact than animal-based foods, as they require less land, water, and energy to produce.

Multiple choice

Which of the following is NOT a common plant-based protein source?

  1. Beans

  2. Lentils

  3. Quinoa

  4. Eggs
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Eggs are an animal-based protein source, while beans, lentils, and quinoa are all plant-based protein sources.

Multiple choice

What is the main benefit of consuming plant-based foods over traditional animal-based foods?

  1. Lower risk of heart disease

  2. Reduced risk of certain types of cancer

  3. Lower environmental impact

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant-based foods are generally lower in saturated fat and cholesterol than animal-based foods, which can help reduce the risk of heart disease. They are also high in fiber, which can help reduce the risk of certain types of cancer. Additionally, plant-based foods have a lower environmental impact than animal-based foods, as they require less land, water, and energy to produce.

Multiple choice

Which of the following is NOT a common plant-based protein source?

  1. Beans

  2. Lentils

  3. Quinoa

  4. Eggs
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Eggs are an animal-based protein source, while beans, lentils, and quinoa are all plant-based protein sources.

Multiple choice

Which of these vegetables is a staple ingredient in many vegetarian dishes worldwide due to its versatility and mild flavor?

  1. Broccoli

  2. Cauliflower

  3. Potato

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

Potatoes are a versatile and widely used vegetable in vegetarian cuisine. They can be boiled, mashed, roasted, or fried, making them a popular ingredient in various dishes.

Multiple choice

Which of the following is a complete protein?

  1. Beans

  2. Eggs

  3. Rice

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

Eggs are a complete protein, meaning they contain all nine essential amino acids.

Multiple choice

Which vegetable is often used as a meat substitute in vegan dishes due to its fibrous texture?

  1. Jackfruit

  2. Portobello Mushroom

  3. Seitan

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

Jackfruit is a versatile fruit that can be cooked and seasoned to resemble the texture and flavor of pulled pork or chicken, making it a popular choice for vegan meat alternatives.

Multiple choice

Which vegetable is often used as a vegan substitute for eggs in baking and cooking?

  1. Flaxseed

  2. Chia Seeds

  3. Applesauce

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

Flaxseed is commonly used as a vegan substitute for eggs in baking and cooking due to its ability to bind ingredients and create a gel-like consistency when mixed with water.

Multiple choice

Which type of tea is known for its high antioxidant content?

  1. Green tea

  2. Black tea

  3. Oolong tea

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

Green tea contains high levels of antioxidants, particularly catechins, which have been linked to various health benefits.

Multiple choice

Which type of tea is known for its potential to lower cholesterol levels?

  1. Green tea

  2. Black tea

  3. Oolong tea

  4. Pu-erh tea
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pu-erh tea, a fermented tea from China, has been shown to have cholesterol-lowering effects.