← All quizzes

The Vegan Gym Longevity Lab · Month 4

Plant-Powered Metabolism — Ferments, Microbiome, Barrier & Beyond

Fermented Foods · The Microbiome as an Organ · Seed Oils · Gut Barrier · Oxidative Stress · Colon Cancer Biology

A 26-question checkpoint drawn from Month 4's six Longevity Lab lectures, with instant per-question feedback and source-cited explanations.

Your progress is saved on this device automatically — close the tab and come back anytime.

Section 1: Core Concepts

1. According to M4W1, what makes fermentation biologically different from pickling?
2. Spermidine, present in aged/fermented soy and legume ferments, is highlighted in M4W1 because…
3. The 'Meta-Host Paradigm' from M4W2 states that…
4. Butyrate — produced when gut bacteria ferment plant fibers — matters for the colon primarily because…
5. Based on M4W3, the most accurate statement about linoleic acid (LA) is…
6. In M4W4, tight-junction integrity of the gut barrier depends on which set of proteins?
7. 'Metabolic endotoxemia' refers to…
8. In the M4W5 'Oxidative Stress Equation', the pathological state is best defined as…
9. The classic adenoma–carcinoma sequence in colorectal cancer (Fearon–Vogelstein) is characterized by…

Section 2: Applied Scenarios

10. A member wants to add a fermented food to her routine. She buys a shelf-stable jar of sauerkraut from a grocery aisle marked 'preserved vegetables.' Based on M4W1, what should she know?
11. A member is currently eating 12 different plant foods a week. Based on M4W2's American Gut Project reference, the highest-leverage next step is…
12. A member eats a mostly whole-food plant diet but frequently orders take-out fried in reused restaurant oils and buys packaged 'vegan' snack foods heavy in refined soybean/sunflower oil. Best M4W3 read?
13. A perimenopausal member has rising fasting glucose, bloating after fibrous meals, and hs-CRP creeping up. Which integrated M4W4/M4W2 read is best?
14. A 47-year-old member with average risk asks whether they still need colon-cancer screening 'if my diet is already really good.' Best answer from M4W6?

Section 3: Myth vs Fact

15. 'All fermented foods on the grocery shelf are equally probiotic.' Based on M4W1, this is…
16. 'Seed oils are inflammatory, so any amount of linoleic acid is harmful.' Based on M4W3, this is…
17. 'Leaky gut isn't real — it's a wellness myth.' Based on M4W4, this is…
18. 'Antioxidant supplements are the best way to fight oxidative stress.' Based on M4W5, this is…

Section 4: Healthspan Heptathlon Integration

19. Which Heptathlon event does Month 4 most directly build?
20. The Wastyk et al. (2021) fermented-food RCT is cited in M4W1/M4W2 primarily because…
21. Urolithin A (from ellagitannin-rich plants like pomegranate, walnuts, berries) connects to Heptathlon Event 2 (Strong & Capable Body) because…
22. How does M4W5 (Oxidative Stress) connect back to Month 1's Hallmarks of Aging?
23. In M4W6, which single Heptathlon lever most directly interrupts the adenoma–carcinoma sequence at the biology level?

Section 5: Application and Integration

24. A member's dashboard: 15 different plants/week, no fermented foods, frequent take-out fried in seed oils, hs-CRP 3.2, ApoB borderline. Which integrated Month 4 plan best embodies the material?
25. A member has average CRC risk, plant-based diet, no symptoms. Their partner had polyps removed at their last colonoscopy and asks whether the member should just 'wait it out.' Best M4W6-integrated response?
26. Which weekly plan best embodies Month 4's 'one lead-domino' logic for someone whose primary risk signal is a leaky-barrier / inflammaging pattern (rising hs-CRP, bloating, poor recovery)?
Revealed 0 / 26

Evidence strength key

  • 🟢Meta-analysis — pooled human RCT evidence
  • 🔵Randomized controlled trial in humans
  • 🟡Observational cohort or large-scale human study
  • 🟣Expert review or consensus statement
  • Mechanistic / preclinical evidence