Superfoods Knowledge 4 — Questions and Answers
Question 1: Which superfood is the primary dietary source of lycopene, a carotenoid linked to reduced prostate cancer risk?
- Watermelon
- Tomatoes (Correct answer)
- Red bell pepper
- Pomegranate
Correct answer: Tomatoes
Cooked tomatoes are the richest dietary source of lycopene, and cooking actually increases lycopene bioavailability compared to raw.
Question 2: What is the traditional preparation method that makes bone broth a superfood?
- High-temperature flash pasteurization
- Long slow simmering of bones to extract collagen and minerals (Correct answer)
- Fermenting marrow with probiotics
- Cold-pressing marrow fat
Correct answer: Long slow simmering of bones to extract collagen and minerals
Extended simmering (12-24 hours) breaks down collagen in bones and connective tissue into gelatin, amino acids, and bioavailable minerals.
Question 3: Resveratrol, the antioxidant compound in red wine and grapes, is concentrated in which part of the grape?
- Pulp
- Seeds
- Skin (Correct answer)
- Stems
Correct answer: Skin
Resveratrol is produced in grape skin as a defense against fungal infection and UV radiation, which is why red wine contains more than white.
Question 4: Which superfood mushroom is researched for its lion's mane compound that may stimulate nerve growth factor (NGF)?
- Reishi
- Chaga
- Lion's mane (Correct answer)
- Cordyceps
Correct answer: Lion's mane
Lion's mane mushroom contains hericenones and erinacines that cross the blood-brain barrier and stimulate NGF production, supporting cognitive health.
Question 5: Acai berries must be consumed frozen or powdered outside their native region primarily because of what characteristic?
- They are extremely toxic when fresh
- They spoil within 24 hours of harvest (Correct answer)
- They lose all nutrition when dried
- They require special storage at high altitude
Correct answer: They spoil within 24 hours of harvest
Acai berries have no shelf life and begin fermenting and losing nutrients within 24 hours of being picked, requiring immediate freezing or freeze-drying.
Question 6: What distinguishes raw cacao from regular processed cocoa powder in terms of nutrition?
- Raw cacao has no sugar while cocoa has sugar added
- Raw cacao retains more flavonoids because it is not heat-processed (Correct answer)
- Raw cacao contains more caffeine than cocoa
- Raw cacao is higher in fat than processed cocoa
Correct answer: Raw cacao retains more flavonoids because it is not heat-processed
Heat processing destroys up to 77% of the flavonoids in cacao beans, so raw cacao powder preserves far more antioxidant activity than Dutch-processed cocoa.
Question 7: Which superfood is the only plant-based source of vitamin B12 in meaningful amounts?
- Nutritional yeast (Correct answer)
- Spirulina
- Chlorella
- Tempeh
Correct answer: Nutritional yeast
Fortified nutritional yeast is the only reliable plant-based source of active vitamin B12, as spirulina contains an analog that can actually block true B12 absorption.
Superfoods Knowledge 4
Which superfood is the primary dietary source of lycopene, a carotenoid linked to reduced prostate cancer risk?