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Chapter 30 — Further Reading
⚠️ This is the most jurisdiction-dependent chapter in the book. Thresholds, mandatory elements and claim definitions differ between countries, and the primary sources below are free, authoritative and more current than any textbook.
⚠️ Read your own regulator, once
US: the FDA's food labelling guidance (fda.gov) — ⚠️ including "How to Understand and Use the
Nutrition Facts Label," which is written for the public and is genuinely good, and the technical
guidance on the 2016 label changes.
UK: the Food Standards Agency (food.gov.uk) and Department of Health guidance on front-of-pack
labelling.
EU: Regulation (EU) No 1169/2011 on food information to consumers — ⚠️ this is where QUID, mandatory declarations and allergen emphasis come from — and Regulation (EC) No 1924/2006 on nutrition and health claims.
⚠️ Do not read either regulation front to back. Search within them for the one thing you want — "QUID," "significant quantity," "nutrition claim conditions" — and read that annex.
Elsewhere: Food Standards Australia New Zealand (FSANZ), Health Canada, and your national equivalent all publish consumer-facing guides.
⚠️ On QUID specifically
Search "QUID quantitative ingredient declaration guidance" and your national enforcement guidance.
⚠️ Read the trigger conditions. They are broader than most people assume — an ingredient named in the product name, emphasized in words or pictures, or essential to characterize the food.
⚠️ This is the single most under-used rule in food labelling and it takes ten minutes to understand properly.
On claim definitions
EU: the conditions of use for nutrition claims are in the Annex to Regulation 1924/2006. ⚠️ Two pages, tabular, and it tells you exactly what "low fat," "high fibre" and "source of protein" require.
US: the FDA's nutrient content claim definitions in 21 CFR 101. ⚠️ Equivalent, and the thresholds differ — which is why §30.8 gave ranges rather than numbers.
On health claims: the EU Register of nutrition and health claims (searchable, free) — ⚠️ worth ten minutes just to see how few claims are authorized and how prescribed the permitted wording is. The US equivalent is the FDA's authorized, qualified and structure/function claim framework (Chapter 16 §16.1).
On front-of-pack labelling
On Nutri-Score: search "Nutri-Score algorithm criticism ultra-processed" ⚠️ and read both a defence and a critique. The processing blindness is Chapter 22's argument and the debate is live.
On warning labels: search "Chile front-of-pack warning label evaluation purchases" and the Mexican and Israeli evaluations. ⚠️ These are among the better-evaluated food policies anywhere.
On UK traffic lights: the Department of Health guidance, ⚠️ and note that it is voluntary — which is why some products carry it and some don't, and why absence is not neutral.
⚠️ On date marking and waste
WRAP (wrap.ngo) in the UK, and equivalent food-waste bodies elsewhere — ⚠️ free, practical,
and their work on date labelling is the source of §30.11b's argument.
Search "best before use by consumer confusion food waste" ⚠️ and then look at what has changed: several major retailers have removed best-before dates from fresh produce, and the reasoning is published.
On freezing: your food safety agency's guidance. ⚠️ The "freeze up to the use-by date" rule is official, widely applicable, and not widely known.
⚠️ On allergen labelling
Your national allergen labelling requirements, and ⚠️ the current position on precautionary ("may contain") labelling — which is under active international review with reference doses. Search "precautionary allergen labelling reference doses VITAL."
⚠️ On Natasha's Law: the Natasha Allergy Research Foundation (narf.org.uk) and the UK
Government's guidance on prepacked for direct sale (PPDS) labelling.
⚠️ Read the guidance, and then look at a sandwich wrapper from a shop that makes them on site. The label is there because of the case in Case Study 2.
On what labels can't do
On whether labels change behaviour: search "nutrition label use dietary behaviour systematic review" and "front-of-pack labelling effectiveness purchasing." ⚠️ §30.15's concession comes from this literature, and it is more equivocal than a chapter about labels would like.
On menu calorie labelling: search "calorie labelling menus evaluation" ⚠️ — and note the supply-side finding, that reformulation and portion reduction may matter more than consumer choice. Chapter 22 §22.10b's argument again.
Practical tools
Your national food composition database — USDA FoodData Central, McCance and Widdowson (UK), or equivalent. ⚠️ Free, and it lets you look up the unlabelled foods — the apple, the potato, the chicken breast — which is where §30.14b said no label exists.
⚠️ And a set of kitchen scales. The single most useful piece of equipment in this chapter, because "per 100 g" only becomes actionable once you know what a portion actually weighs (§30.2's serving-size problem, solved for £10).
A note on what to be careful with
⚠️ This chapter has a specific failure mode: turning shopping into an audit.
Three cautions:
1. ⚠️ The protocol is meant to be run ONCE per product, not every shop. Marisol's ongoing time cost is zero. A person standing in an aisle reading panels every week has misunderstood the assignment and will stop within a month.
2. ⚠️ Precision is not available. §30.5b. Values may be calculated rather than measured, with tolerances around ±20%. Treating a panel as exact will make you optimize noise — and Chapter 2's whole argument about measurement error applies to a cereal box as much as to an epidemiological study.
3. ⚠️ And label literacy is defensive. §30.15. It stops packaging making your decisions for you. It does not, by itself, change what you eat — and if this chapter leaves you feeling that you have now solved something, Chapter 31 and Chapter 22 are where the actual change lives.
⚠️ Three things I'd most want retained:
⚠️ QUID. If the front names an ingredient, the back declares how much — go and find it.
⚠️ Provenance or quantity. Two seconds, applied to every claim you ever see again.
⚠️ And "use by" is safety, "best before" is quality — which will save you more money than anything else on this page.