Research and analysis

National Diet and Nutrition Survey (NDNS): results years 1 and 2

NDNS results assessing diet, nutrient intake, nutritional status of the population in private households in the UK aged 18 months upwards.

Documents

Download Blood Analyte Report from Years 1 and 2 combined Executive Summary

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Download Blood Analyte Report from Years 1 and 2 combined Text

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Download Blood Analyte Tables 1-5

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Download Blood Analyte Table 1

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Download Blood Analyte Table 2

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Download Blood Analyte Table 3

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Download Blood Analyte Table 4

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Download Blood Analyte Table 5

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Download Appendix B Weighting the NDNS core sample

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Download Appendix L Priority order of blood analytes

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Download Appendix M The blood sample. Collecting and processing the blood

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Download Appendix N Methods of blood analysis and quality control

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Download Appendix O Nurse stage 2 participant information documents

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Download Appendix Q Topics covered in NDNS report and archived data

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Download Pre Release Access List

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Download Statistical Press Notice

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Detail

The NDNS involves an interview, a four-day dietary diary and blood and urine samples. The results are used to develop policy and monitor progress towards public health objectives on diet and nutrition, such as Responsibility Deal Food Network pledges on trans fat intakes. The data are also used to compare consumption with UK dietary recommendations on healthy, balanced diets and nutrient intakes.

The results in the main report published in July 2011, were based on assessment of food consumption over four days and so tell us about diet over a short period. The supplementary report provides an analysis of blood samples which gives an indication of the nutritional status of the population over a longer period.  The report presents descriptive statistics on a number of blood analytes including iron and vitamin D and focuses on respondents aged 11-18 and 19 to 64 year olds who agreed to a blood sample being taken.

The NDNS Supplementary report on Blood Analytes for Years 1 and 2 combined (2008/09 and 2009/10) is available below.

Key Findings

The results suggest that the overall picture of the nutritional status of the UK population is broadly similar to previous relevant surveys in the NDNS series carried out in 1997 and 2000/01. The results are not inconsistent with the findings from the dietary data. The results do not indicate any new areas of concern in the nutritional status of these population groups.
Where there is evidence of low status, this does not necessarily mean people are deficient, but that they are at greater risk of deficiency.

  • There is evidence of iron-deficiency anaemia and low iron stores in a proportion of adult women and older girls. This is in line with findings from previous surveys and does have health implications for these groups.
  • There is evidence of low vitamin D status in adults and older children, both male and female which has implications for bone health: in particular increased risk of rickets and osteomalacia.
  • A substantial proportion of adults and older children have low vitamin B2 (riboflavin) status. The health implications of this are not known.
  • There is no evidence of low status for other micronutrients for example vitamin C, B6, B12, thiamin, retinol and vitamin E.
  • A proportion of adults had elevated levels of blood lipids, increasing risk of cardiovascular disease. This is well known and in line with findings from previous health surveys.