NEOBIOME

RD_030: Ministry of Health 2008/09 NZ Adult Nutrition Survey — Ch.3 Nutrient Intakes: Energy & Macronutrients…

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RD_030: Ministry of Health 2008/09 NZ Adult Nutrition Survey — Ch.3 Nutrient Intakes: Energy & Macronutrients…

Source

https://www.health.govt.nz/publications/200809-new-zealand-adult-nutrition-survey-data-tables — original source (opens in a new tab; the file is not redistributed)

MoH 2008/09 NZ Adult Nutrition Survey — Ch.3 Energy & Macronutrients

The NZ dietary-energy split RT_302 sought for the D29 food_ssi blend weights — protein ≈ 16.5% of energy vs carbohydrate ≈ 46.5%, fat ≈ 33.7%, alcohol ≈ 3.8%

Chapter 3 (“Nutrient Intakes and Dietary Sources: Energy and Macronutrients”) of the landmark national survey. It provides the percent-energy contribution of each macronutrient — the “calorie-/dietary-energy-share basis” RT_302 asked for to replace the interim co-equal 50/50 weights in the engine’s food_ssi = w_veg·veg + w_protein·protein (D29, params.py food_blend_w_veg/food_blend_w_protein, AF-23). ⚠ The number the survey hands over cleanly is the protein energy share (~16.5%); mapping the macronutrient split onto the engine’s food-production axes (veg-food SSI vs protein-food SSI) is a documented modelling judgment (see NI relevance). This is also the retrievable primary of the same 2008/09 survey CR_018 leans on for the veg-demand figure (a different chapter).

Summary

The 2008/09 New Zealand Adult Nutrition Survey (ANS) is the most recent national nutrition survey of NZ adults (15+ yr); “A Focus on Nutrition: Key Findings” is its published report and Chapter 3 covers energy and the four energy-yielding macronutrients (protein, fat, carbohydrate, alcohol). Intakes were collected by 24-hour diet recall (with a 25% repeat subsample adjusted for intra-individual variation via PC-SIDE), valued against the NZ Food Composition Database, and reported as usual-intake distributions and as percent contribution to total dietary energy by age, sex, ethnicity and NZDep2006 quintile. The headline national means: protein 16.4% (males) / 16.5% (females) of energy, total fat 33.7% / 33.8%, carbohydrate 46.0% / 47.1%, and alcohol 3.8% (total population) — every macronutrient mean sits within its Acceptable Macronutrient Distribution Range (AMDR). Median usual daily energy intake was 10,380 kJ (males) and 7448 kJ (females). By food group, energy came mainly from Bread (11%), Grains and pasta (7%) and Potatoes/kumara/taro (6%), with Fruit, Milk and Alcoholic beverages ~5% each — vegetables and fruit are minor energy contributors, which is the key caveat when reading this macronutrient split onto the food model’s veg/protein production axes.

Key claims

- claim: "MACRONUTRIENT DIETARY-ENERGY SPLIT (the RT_302 figure). Mean percent contribution to total dietary energy, national adult means by sex: PROTEIN 16.4% (males) / 16.5% (females); TOTAL FAT 33.7% / 33.8%; CARBOHYDRATE 46.0% / 47.1%; ALCOHOL 3.8% (total population, sexes combined; higher in males). Verbatim: 'The mean contribution of protein to energy intake was 16.4% for males and 16.5% for females'; 'The mean percent contribution to daily energy intake from total fat was 33.7% for males and 33.8% for females'; 'The mean contribution [carbohydrate] to daily energy intake was 46.0% for males and 47.1% for females'; alcohol 'Total population ... Mean 3.8'. Protein varied little across age groups (15.2–17.0%). This is the defensible NZ basis for re-weighting the D29 food_ssi blend away from the interim 50/50 — the protein macronutrient supplies ~1/6 of dietary energy. [national survey, verbatim, verified]"
  source_location: "§3.3 Protein, p.29 ('16.4% for males and 16.5% for females', Table 3.3 / Fig 3.4); §3.4 Total fat, p.37 ('33.7% for males and 33.8% for females', Table 3.5 / Fig 3.7); §3.6 Carbohydrate, p.69 ('46.0% for males and 47.1% for females', Table 3.15 / Fig 3.19); §3.11 Alcohol, Table 3.27 p.106 (Total population percent energy from alcohol Mean 3.8)"
- claim: "ENERGY INTAKE + METHOD + CONVERSION FACTORS. Median usual daily energy intake 10,380 kJ (males) / 7448 kJ (females); by age group males 7926–11,817 kJ, females 6014–8245 kJ (Fig 3.1). Percent energy from each macronutrient was computed from day-1 recall using conversion factors: fat 37.7 kJ/g, carbohydrate 16.7 kJ/g, protein 16.7 kJ/g, alcohol 29.3 kJ/g (each nutrient's energy ÷ total energy). Nutrient RATIOS (percent-energy) were NOT adjusted for intra-individual variation (only multi-day-repeat methods exist for ratios); absolute intakes were adjusted via PC-SIDE. Food composition from the NZ Food Composition Database (~2740 foods). Intakes exclude dietary supplements (except energy-providing meal replacements). Verbatim: 'The median usual daily energy intake was 10,380 kJ for males and 7448 kJ for females.' [national survey, verbatim, verified]"
  source_location: "§3.2 Energy intake, p.22 ('10,380 kJ for males and 7448 kJ for females', Table 3.1 / Fig 3.1); §3.1 Explanatory notes, p.19 (conversion factors: fat 37.7, carbohydrate 16.7, protein 16.7, alcohol 29.3 kJ/g; ratios not intra-individually adjusted; NZFCDB ~2740 foods)"
- claim: "AMDR CONTEXT — all four macronutrient means fall WITHIN the acceptable ranges (NHMRC 2006, the Australia/NZ Nutrient Reference Values): protein AMDR 15–25% (NZ 16.4/16.5%); total fat AMDR 20–35% (NZ 33.7/33.8%, near the upper bound); carbohydrate AMDR 45–65% (NZ 46.0/47.1%, near the lower bound). Saturated + trans fat recommended ≤10% of energy. So the observed NZ diet is a balanced, guideline-compliant reference diet — appropriate as the dietary-energy-share basis for a self-sufficiency demand model. [national survey, verbatim, verified]"
  source_location: "§3.3 (protein AMDR 15–25%, footnote to Fig 3.4); §3.4 (fat AMDR 20–35%, footnote to Fig 3.7); §3.6 (carbohydrate AMDR 45–65%, p.68, footnote to Fig 3.19); saturated+trans ≤10% (p.~48, NHMRC 2006)"
- claim: "DIETARY SOURCES OF ENERGY (food-group contributions — the caveat for the veg/protein axis mapping). The Bread group was the principal source of energy at 11%, then Grains and pasta 7%, Potatoes/kumara/taro 6%; Fruit, Non-alcoholic beverages, Milk, Bread-based dishes and Alcoholic beverages each 5%; Sugar and sweets and Poultry each 4%. Vegetables and fruit are therefore MINOR energy contributors — most dietary energy is cereal/starch-based. Implication: the macronutrient percent-energy split is NOT the same thing as a 'vegetable-food vs protein-food' energy split, so it cannot be read directly onto the engine's veg/protein PRODUCTION axes without a modelling assumption. Verbatim: 'The Bread group was the principal source of energy, contributing 11%, followed by Grains and pasta (7%) and Potatoes, kumara and taro (6%).' [national survey, verbatim, verified]"
  source_location: "§3.2 Dietary sources of energy, p.22–23 (Bread 11%, Grains and pasta 7%, Potatoes/kumara/taro 6%; Fruit/Non-alc beverages/Milk/Bread-based dishes/Alcoholic beverages 5% each; Sugar and sweets/Poultry 4% each; Table 3.2)"

Neobiome Intelligence relevance

Feeds the D29 food_ssi blend weights (food_blend_w_veg / food_blend_w_protein). The engine computes food_ssi = w_veg · min(veg_ssi,1) + w_protein · protein_ssi (engine.py §D29, amended 2026-07-07 from a min() to a demand-weighted blend to remove the food cliff). The weights are currently the interim co-equal 0.5 / 0.5 placeholders (params.py:222–223, tagged assumed / low), and RT_302 explicitly names this source class (“MoH NZ Adult Nutrition Survey / dietary-energy shares”) as the intended calorie-share basis. RD_030 now supplies that basis, primary-verified.

What the survey settles, and what it does not:

  • Settled (clean number): the protein macronutrient supplies ~16.5% of NZ dietary energy — materially less than the 50% the interim weight gives the protein axis. On a protein-vs-non-protein-energy reading, w_protein ≈ 0.16–0.17, w_veg ≈ 0.83–0.84; on a protein-vs-carbohydrate reading (16.5 : 46.5, the two “crop-derived” macros), w_protein ≈ 0.26, w_veg ≈ 0.74. Either way the evidence points to down-weighting protein relative to veg, not co-equal weighting.
  • NOT settled (modelling judgment): the engine’s two axes are food-production axes — vegetable-food self-sufficiency vs protein-food self-sufficiency — not macronutrient axes. Claim 4 shows vegetables/fruit are minor energy contributors (fruit 5%, potatoes 6%, most energy is bread/grains), so equating the “veg axis” with “all non-protein energy” over-credits the veg axis. The macronutrient split is therefore an imperfect proxy for a production-axis weight: it dictates the protein share cleanly but leaves the veg-axis definition (complement vs carbohydrate-normalised) as a choice.
  • Recommendation: adopt a protein-share-informed weight (protein ≈ 0.16–0.26 depending on the chosen normalisation, veg = complement) and keep the param tagged assumed with RD_030 as its evidentiary anchor — an honest upgrade from a bare 50/50 placeholder, but not a verified weight, because the veg↔macronutrient mapping adds interpretation the survey itself does not resolve. Sensitivity: the composite swings ±0.07–0.10 at ±50% on these weights whenever protein production is active, so the move from 0.5 to ~0.2 protein is material and worth documenting in the trace.

⚠ The blend weights are not changed by this source. It records the dietary-energy split and flags the re-derivation of food_blend_w_veg/food_blend_w_protein (params.py:222–223, currently 0.5/0.5 assumed); the weights themselves are unmoved, pending corroboration of the ~16.5% protein share against a second dietary-energy-split reference.

Also anchors the demand denominators. The percent-energy split + median energy intakes (10,380 / 7448 kJ) are the same-survey primary behind the food-domain demand figures CR_018 carries as a compiled synthesis (CR_018’s ~47 kg/person/yr veg demand is from a different chapter of this survey — food-group intakes — so RD_030 does not itself verify that figure, but it puts the authoritative 2008/09 ANS into the corpus).

International requirement frame now in-corpus. The AMDR bands this survey is scored against (Claim 3: fat 20–35%, SFA+trans ≤10%) are cited here as NHMRC 2006, which in turn draws on the Joint FAO/WHO consultations. The requirement primary behind the fat half of those bands is now retrievable as OT_167 (FAO/WHO FNP 91) — it confirms the total-fat 20–35%E / SFA ≤10%E ranges (NZ’s actual 33.7%E fat sits near the upper bound) but, being fats-only, carries no protein energy share, so it does not bear on the blend-weight decision.

Notes

  • Authoritative government primary, downloaded — no retrieval-provenance block required (not AI-prepared). Read verbatim via pdftotext -layout (91 pp chapter extract; every figure in key_claims traces to a named table/figure and page). data_quality: verified.
  • Publication: A Focus on Nutrition: Key Findings of the 2008/09 New Zealand Adult Nutrition Survey (University of Otago & Ministry of Health, published 2011; Wellington: Ministry of Health). The survey field year is 2008/09; the report year (2011) is from the standard published citation — this raw is the Chapter 3 extract and does not carry its own title page, so the 2011 date is attributed from the report’s canonical citation, not read off this file. The running footer confirms the exact report title.
  • Vintage caveat (the standing weakness of NZ nutrition data). 2008/09 is the most recent NZ national adult nutrition survey — there has been no update (the PHCC flagged this gap in 2025, per CR_018). The macronutrient split is stable enough to serve as a planning-grade weight basis, but it is ~17 yr old; a future ANS would be the natural refresh. Not closable by retrieval now.
  • Percent-energy ratios are unadjusted for intra-individual variation (a stated method limit — only multi-day-repeat methods exist for ratios). This affects the distribution of percent-energy, not the population mean, which is what the blend weight uses — so it is not a concern for the RT_302 application.
  • Sexes reported separately (males/females differ by <1.5 pp on every macronutrient share). For a single national weight, average the two (protein ≈ 16.5%, fat ≈ 33.8%, carbohydrate ≈ 46.6%, alcohol ≈ 3.8%) — the sex split is immaterial to the weight decision.

Research targets

Documents to retrieve

  • (none) — this IS the primary RT_302 sought.

Research gaps

  • RT_302 — RESOLVED by this source (data delivered). The NZ dietary-energy split RT_302 asked for is now retrieved and verified: protein ≈ 16.5% of energy (vs carbohydrate ≈ 46.5%, fat ≈ 33.7%, alcohol ≈ 3.8%). The engine can move food_blend_w_protein off the 0.5 interim toward the protein energy share (~0.16–0.26 per the chosen normalisation). ⚠ The exact veg/protein axis mapping is a downstream engine modelling decision, not a further retrieval target — folded into this resolution, NOT raised as a new RT.
  • No new NZ nutrition-data RT raised (a fresh post-2008/09 national survey does not yet exist to retrieve).

Connections

Links to

Sources (2): CR_018 · OT_167

Referenced by

Sources (4): CR_018 · OT_165 · OT_166 · OT_167

SSI indicators (1): I02: Food Security & Sustainable Agriculture

EDT domains (1): D02: Smart Food Systems & Agriculture

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