I think this is closer to it but I am not an expert.

or:
Erhaltung (Aufrechterhaltung, Beibehaltung)der Position nach Rang /Erhaltung der Rangfolge /Anordnung der eingenommenen Nährstoffe

Stabilität, Konstanz (im weiteren Sinne)


www.springerlink.com/index/x870561jnm313721.pdf
Untersuchungen zum »Tracking« lassen zwar ..... Livingstone MBE, Robson PJ (2000)


http://journals.cambridge.org/download.php?file=/BJN/BJN92_S...

Tracking of nutrient intake
Tracking has been defined as the maintenance of relative
position in rank over time (Kelder et al. 1994). Given
that physiological processes that lead to diet-related diseases
in adulthood have their antecedents in childhood
diet, a high degree of stability over time in nutrient
intake implies that the primary prevention of diet-related
chronic diseases should be initiated through interventions
that are directed at children from the outset.

http://riskfactor.cancer.gov/tools/children/review/agegroups...
Evidence for tracking (maintenance of relative position in rank over time) of nutrient intake over time is inconsistent for school age children and adolescents.


http://ajph.aphapublications.org/cgi/content/abstract/85/12/...

The tracking of nutrient intake in young children: the Framingham Children's Study.

M R Singer, L L Moore, E J Garrahie and R C Ellison

Evans Department of Medicine, Boston University School of Medicine, MA 02118, USA.

OBJECTIVES. This study compared the nutrient intake of children at 3 through 4 years of age with that in subsequent years to determine whether nutrient intake tracked over time. ...
Results were similar in the lowest quintile of intake. Extreme misclassification was rare. CONCLUSIONS. This study suggests that tracking of nutrient intake begins as young as 3-4 years of age.