Superfoods Facts 3 — Questions and Answers
Question 1: What is the main active compound in garlic that gives it antimicrobial superfood properties?
- Quercetin
- Allicin (Correct answer)
- Resveratrol
- Capsaicin
Correct answer: Allicin
Allicin is released when garlic is crushed or chopped and is responsible for its pungent smell and antimicrobial effects.
Question 2: Pomegranate's superfood status is largely due to its high content of which antioxidant compound?
- Punicalagins (Correct answer)
- Sulforaphane
- Betalains
- Zeaxanthin
Correct answer: Punicalagins
Punicalagins are unique, potent antioxidants found almost exclusively in pomegranates, making them one of the most antioxidant-rich fruits.
Question 3: What percentage of an avocado's calories come from fat?
- About 30%
- About 50%
- About 75% (Correct answer)
- About 90%
Correct answer: About 75%
Approximately 75–80% of an avocado's calories come from fat, primarily heart-healthy monounsaturated oleic acid.
Question 4: Which superfood grain is technically a seed and is naturally gluten-free?
- Barley
- Spelt
- Quinoa (Correct answer)
- Farro
Correct answer: Quinoa
Quinoa is a seed from the Chenopodium plant, not a true grain, and is naturally free of gluten.
Question 5: Green tea's superfood properties are primarily attributed to which class of antioxidants?
- Isoflavones
- Catechins (EGCG) (Correct answer)
- Anthocyanins
- Carotenoids
Correct answer: Catechins (EGCG)
Epigallocatechin gallate (EGCG) and other catechins in green tea are among the most studied antioxidant compounds in nutrition.
Question 6: Beets are considered superfoods partly because they are rich in nitrates that benefit which body system?
- Digestive system
- Immune system
- Cardiovascular system (Correct answer)
- Endocrine system
Correct answer: Cardiovascular system
Dietary nitrates in beets convert to nitric oxide in the body, dilating blood vessels and lowering blood pressure.
Question 7: Which superfood is the only common fruit that provides a complete amino acid profile?
- Goji berry
- Avocado
- Acai berry
- Hemp seed (Correct answer)
Correct answer: Hemp seed
Hemp seeds contain all nine essential amino acids in adequate proportions, making them a complete protein source.
Superfoods Facts 3
What is the main active compound in garlic that gives it antimicrobial superfood properties?