A Balanced Diet? by D. J. Naismith (auth.), John Dobbing DSc, FRCP, FRCPath

By D. J. Naismith (auth.), John Dobbing DSc, FRCP, FRCPath (eds.)

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41. Wenlock RW, Disselduff MM, Skinner RB, Knight I (1986) The diets of British schoolchildren. DHSS, London 42. Tanner JM, Whitehouse RH, Takaishi M (1966) Standard from birth to maturity for height, weight, height velocity and weight velocity: British children 1965. Arch Dis Child 41:454,613 43. Billewicz WZ, Fellowes M, Thomson AM (1981) Pubertal changes in boys and girls in Newcastleupon-Tyne, Ann Hum BioI 8:211-219 44. Tanner JM (1962) Growth and adolescence, 2nd edn. Blackwell, Oxford 45.

The central issue is what criteria should be used to relate morbidity to this functional index of status. 1 are unlikely to be reliable estimates. These figures are based on food supply rather than measured intakes and do not take into account differences in the age structure of the populations. For example, in developing countries 40%-50% of the population may be under the age of 15 years. In the Seven Countries Study [1] energy intakes tended to be greater among men from the least affluent countries.

What the state is meant to be when W /H2 lies between 25 and 30 is unclear. However, life is more complicated than this. The ratio of W /H2 may be acceptable for population studies when, for example, large groups of people are bo:ing cOntrasted. When this method is applied to individuals, however, it is not appropriate and may indeed be quite misleading. Two people with exactly the same W/H2 can differ very markedly in their fatness, simply because individuals of the same height may have very different proportions of muscle and various other tissues including the skeleton.

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