Chapter 38 — Self-Check Quiz

20 questions. Answers with explanations at the end. Aim for 16+.

⚠️ The last quiz. Questions 2, 4, 7 and 20 are the ones the book's honesty rests on.

Questions

1. The uncomfortable fact in the hook is that Theo:

• a) Never read Chapter 11
• b) Read Chapter 11, agreed with it, and did not act on it for eighteen months
• c) Disagreed with the fibre evidence
• d) Could not afford the change

2. §38.1's answer to Chapter 34 §34.7's caveat begins with:

• a) A rebuttal
• b) A concession — the caveat is correct and cannot be designed away
• c) A claim that the risk is negligible
• d) A referral to another chapter

3. §38.1 names which object as the most rule-convertible in the book?

• a) The one-page answer
• b) The confidence column in Chapter 37 §37.3 — a ✅ reads as a requirement and a 🟡 as a failure to comply
• c) The six-question check
• d) The Project Checkpoints

4. §38.2's defence against Chapter 36 §36.7 is that:

• a) The ranking is wrong
• b) Education transferring a FILTER is a different object from education transferring a LIST
• c) Books are exempt from the ladder
• d) Population effects do not matter

5. §38.2 raises how many honest problems with its own defence?

• a) None
• b) Three — it is convenient, thinly evidenced, and probably subject to the same distributional failure
• c) One
• d) Five

6. §38.3's four capabilities are:

• a) A meal plan, a shopping list, a budget, and a recipe book
• b) The shape of the answer, calibrated confidence, a filter, and a recovery procedure
• c) Certainty, optimization, personalization, and weight loss
• d) Knowledge, motivation, willpower, and discipline

7. In §38.5's verdict distribution, the largest single category is:

• a) 🟡 Unclear
• b) ✅ Well supported, at roughly 132
• c) ❌ Not supported
• d) 🟢 Probably true

8. The explanation given for that is:

• a) The book is less sceptical than it claims
• b) A large share of those ✅s are clinical, legal, definitional and physiological facts rather than dietary findings
• c) The verdicts were miscounted
• d) Nutrition science is more settled than expected

9. Which two verdict columns does §38.5 say will save readers the most money?

• a) ✅ and 🟢
• b) ❌ and 🟠 — together about 133 claims
• c) 🟡 and ⚗️
• d) 🟢 and 🟡

10. Of §38.5b's thirty-eight one-line summaries, the four to keep if you keep nothing else are:

• a) Chapters 1, 4, 22 and 37
• b) Chapters 2, 10, 18 and 33 — is the evidence any good, is this the right argument, what is the dose, and is this even a food problem
• c) Chapters 11, 16, 30 and 32
• d) Chapters 24, 26, 34 and 35

11. In §38.6b's four condensed frameworks, what is unrecognizable between them?

• a) The filter
• b) Section 1 — what each person eats
• c) The recovery procedure
• d) Nothing; they are broadly identical

12. Kelsey's fifth section — her filter — is:

• a) The same as everyone else's
• b) Pointed in the opposite direction: "does this generate a rule? If yes, it is not for me"
• c) Absent
• d) A list of permitted foods

13. The claim arriving in 2035 will most likely:

• a) Be obviously false
• b) Be new, mechanistic, cite real studies, be confidently delivered, and REPLACE rather than adjust
• c) Come from a government agency
• d) Be untestable in principle

14. §38.7's three additional questions for a future claim are:

• a) Who funded it, who published it, who endorsed it
• b) Has it been tested or only proposed; is it new or is it back; and has anything converged on it
• c) Is it popular, is it recent, is it simple
• d) Does it match my diet, my budget, my taste

15. The disposition §38.7 says is almost always correct and socially least rewarded is:

• a) Confident dismissal
• b) "I don't know yet"
• c) Immediate adoption
• d) Deferring to credentials

16. §38.8's four steps for when something in this book turns out wrong include:

• a) Abandoning the framework
• b) Checking which LEVEL was wrong, checking whether it was marked, adjusting rather than abandoning, and noticing if you are pleased
• c) Waiting for a replacement book
• d) Ignoring the correction

17. According to §38.9, what determines what happens after you stop is:

• a) How long you stopped for
• b) What you conclude about it — the self-blame at Chapter 33 §33.6's step 5 is load-bearing
• c) How much weight you gained
• d) Whether you told anyone

18. §38.9's restart procedure says to resume:

• a) Everything at once, on a Monday
• b) One thing, the easiest one, adding nothing to compensate, and not on a Monday or in January
• c) The most important thing first
• d) Only after a period of stricter eating

19. §38.9b's general rule about the filter is:

• a) Use it on everyone
• b) It is for claims that would change what YOU eat — pointing it at other people converts a tool into a personality
• c) Never discuss nutrition
• d) Correct errors whenever you hear them

20. In Case Study 2, how many of the seven people were helped most by dietary knowledge?

• a) All seven
• b) Two — and one of those two was helped by knowing what NOT to buy
• c) Five
• d) None

Answers

1. b) He read it, agreed, and did nothing for eighteen months. ⚠️ The most uncomfortable fact in the book, and it is aimed at the book: if knowing did not produce doing in the reader paying most attention, about the claim the book is most confident of, what was the reading for? §38.0.

2. b) A concession. ⚠️ Every protection — no calorie targets, no goal weights, no body-composition targets, ranges instead of prescriptions — reduces the risk and none removes it. ⚠️ The honest claim is not "this book is safe" but that for most readers it reduces rule-following and for a minority it can supply another rule set, and that minority has been told so four times in print. §38.1.

3. b) The confidence column. ⚠️ It is the right way to present evidence and a bad way to present it to someone already scoring themselves — and §38.1 says plainly that no version doing both jobs exists. ⚠️ A genuine unresolved tension, not a rhetorical concession. §38.1.

4. b) Filter versus list. ⚠️ A list competes with every other list the reader will meet and decays when the campaign ends; a filter operates ON the other lists and the six questions do not expire. ⚠️ Theo's eighteen months is the filter working: one addition, thirty avoided changes. §38.2.

5. b) Three. ⚠️ It is convenient — "my kind of education is the good kind" is exactly what a person who wrote a long book would say. It is thinly evidenced, held at 🟡 not 🟢. And a six-hundred-page book reaches people with time, literacy and existing interest, which is Chapter 36 Case Study 1's distributional failure unchanged. §38.2.

6. b) Shape, calibration, filter, recovery. ⚠️ None of them is a food. ⚠️ And what it was NOT for: certainty, a plan, an optimum, and weight loss. §38.3.

7. b) ✅, at roughly 132. ⚠️ A book positioning itself as sceptical, ending with "well supported" as its commonest verdict, should be asked why — and §38.5 asks rather than celebrating. §38.5.

8. b) Many are not dietary findings. ⚠️ Refeeding syndrome is real, ingredients are listed by descending weight, use-by is a safety date, ghrelin rises before expected meals. ⚠️ Chapter 30 alone contributed eight ✅s about labelling law. The scepticism was never about whether facts exist. §38.5, and Chapter 29 §29.16 asked it first.

9. b) ❌ and 🟠, about 133 claims. ⚠️ Detoxes, superfoods, most supplements, IgG panels, hair analysis, blood-type diets, nutrigenomic tests. ⚠️ A book whose largest practical effect is the things you stop doing is an odd deliverable — and it is Theo's eighteen months again. §38.5.

10. b) 2, 10, 18 and 33. ⚠️ Is the evidence any good · is this the right argument · what is the dose · and is this even a food problem. ⚠️ A person carrying those four questions is better equipped than one carrying the whole plate and none of them. §38.5b.

11. b) Section 1. ⚠️ Marisol's, Devi's, Walt's and Kelsey's first sections have almost nothing in common — and their fifth sections are all doing the same job. ⚠️ What generalizes is not the food. §38.6b.

12. b) Pointed in the opposite direction. ⚠️ "Does this generate a rule? If yes, it is not for me." ⚠️ Which is the point of including her: the filter can be aimed where the person actually needs it, and for her that means away from composition entirely. §38.6b, Ch 34.

13. b) New, mechanistic, real citations, confident, REPLACING. ⚠️ And something will be for sale, though possibly only attention. ⚠️ Chapter 37 §37.2b established that claims which replace rather than adjust are almost always wrong. §38.7.

14. b) Tested or proposed; new or back; has anything converged. ⚠️ The gap between "plausible mechanism" and "tested prediction" is where the seed oil argument broke (Ch 19 §19.5), and a new claim supported by one line of evidence is one line. §38.7.

15. b) "I don't know yet." ⚠️ Nutrition is a field in which waiting to see whether something replicates is almost always right and is the position that earns the least social credit. §38.7.

16. b) All four. ⚠️ "Notice if you are pleased" belongs there because being right about experts being wrong is a satisfying feeling with nothing to do with evidence — and it is what a great deal of contrarian nutrition content is selling. §38.8.

17. b) What you conclude about it. ⚠️ Chapter 33 §33.6's step 5: a person who reads a lapse as predictable changes nothing structural; a person who reads it as "I have no discipline" tightens the rules, and the tightening produces the next collapse. §38.9.

18. b) One thing, the easiest, adding nothing, not on a Monday. ⚠️ Monday, January and "getting serious" are all the all-or-nothing pattern in disguise. ⚠️ Kwabena's week four is the model: "Before, that would have been the end of it. This time it was just a bad week." §38.9, Ch 31 CS1.

19. b) It is for claims that would change what YOU eat. ⚠️ A person who has just learned to evaluate evidence is at their most insufferable, and Chapter 34 §34.11's language section applies to you too. ⚠️ The one exception: if someone asks how to evaluate a claim, teach the filter rather than giving your answer — that is the only form that scales. §38.7, §38.9b.

20. b) Two, and one of those was negative knowledge. ⚠️ Five of seven were helped most by a coach, a form, a lunch club, treatment, or a dietitian. ⚠️ That ratio is the honest summary of what a nutrition book does, and §38.2 is an attempt to say something true about the remaining two rather than to claim the other five. Case Study 2.

Scoring

Three items worth checking regardless of score.

Question 2. ⚠️ The answer to the book's own caveat is a concession first. If that reads as evasion, say so — Tier 3's S1 asks you to judge it.

Question 7. ⚠️ A sceptical book whose commonest verdict is "well supported" owes an explanation. §38.5 gives one; check whether it convinces you.

Question 20. ⚠️ Two of seven. That is the honest measure of what this has been worth.

⚠️ That is the last quiz.

⚠️ Eat mostly plants. Eat enough protein. Cook a reasonable amount of it. Sleep. Move. Eat with people.

⚠️ Then close the book and go and have dinner.