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

What is the primary source of food for coral polyps?

  1. Sunlight

  2. Plankton

  3. Fish

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

Coral polyps primarily feed on plankton, which they capture using their tentacles.

Multiple choice

What is the primary characteristic that distinguishes functional foods from regular foods?

  1. High nutritional value

  2. Enhanced flavor and texture

  3. Specific health-promoting properties

  4. Low calorie content
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Functional foods stand out due to their specific health-promoting properties beyond basic nutrition. They contain bioactive compounds that offer additional health benefits.

Multiple choice

Which of these foods is NOT typically considered a functional food?

  1. Oatmeal

  2. Salmon

  3. White bread

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

White bread is a refined grain product with limited nutritional value and lacks the bioactive compounds found in functional foods.

Multiple choice

Which functional food is rich in antioxidants that protect cells from damage?

  1. Berries

  2. Leafy greens

  3. Nuts

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

Berries, such as blueberries, strawberries, and raspberries, are known for their high antioxidant content, which helps protect cells from oxidative damage.

Multiple choice

Which functional food is a good source of omega-3 fatty acids, beneficial for heart health?

  1. Salmon

  2. Avocado

  3. Dark chocolate

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

Salmon is a rich source of omega-3 fatty acids, which have been shown to support heart health by reducing inflammation and improving blood lipid profiles.

Multiple choice

Which functional food is a good source of dietary fiber, essential for digestive health?

  1. Brown rice

  2. Sweet potato

  3. Apple

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

Brown rice is a whole grain rich in dietary fiber, which supports digestive health by promoting regularity and maintaining a healthy gut microbiome.

Multiple choice

Which functional food is a good source of polyphenols, known for their antioxidant and anti-inflammatory properties?

  1. Green tea

  2. Dark chocolate

  3. Red wine

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

Green tea is rich in polyphenols, particularly catechins, which have antioxidant and anti-inflammatory properties that support overall health.

Multiple choice

What is the primary benefit of consuming lutein-rich functional foods?

  1. Improved vision

  2. Reduced risk of heart disease

  3. Enhanced cognitive function

  4. Increased muscle mass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lutein-rich functional foods, such as leafy greens and egg yolks, support eye health by protecting the macula, a part of the retina responsible for central vision.

Multiple choice

Which functional food is a good source of probiotics, beneficial for gut health?

  1. Yogurt

  2. Kimchi

  3. Kombucha

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

Yogurt is a fermented dairy product rich in probiotics, live microorganisms that support a healthy gut microbiome and promote digestive health.

Multiple choice

Which functional food is a good source of beta-glucan, known for its immune-boosting properties?

  1. Oats

  2. Mushrooms

  3. Barley

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

Oats are a good source of beta-glucan, a soluble fiber that has immune-boosting properties and may help reduce cholesterol levels.

Multiple choice

What is the primary benefit of consuming selenium-rich functional foods?

  1. Improved thyroid function

  2. Reduced risk of heart disease

  3. Enhanced cognitive function

  4. Increased muscle mass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Selenium-rich functional foods, such as Brazil nuts and seafood, support thyroid function by providing essential nutrients for hormone production.

Multiple choice

Which of the following is NOT a key recommendation of the Dietary Guidelines for Americans?

  1. Choose a variety of fruits and vegetables.

  2. Limit saturated and trans fats.

  3. Choose whole grains over refined grains.

  4. Consume moderate amounts of alcohol.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Dietary Guidelines for Americans recommend limiting alcohol consumption, not consuming it in moderation.

Multiple choice

Which of the following is a good source of omega-3 fatty acids?

  1. Salmon

  2. Tuna

  3. Flaxseed

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

Salmon is a fatty fish that is a good source of omega-3 fatty acids.

Multiple choice

Which of the following is a good source of dietary fiber?

  1. White bread

  2. Brown rice

  3. Oatmeal

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

Oatmeal is a whole grain that is a good source of dietary fiber.

Multiple choice

Which of the following is a good source of calcium?

  1. Milk

  2. Yogurt

  3. Cheese

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

Milk is a good source of calcium and other essential nutrients.