[Development of body surface area during childhood (author's transl)].

Using the formula of Haycock et al. development of body surface area was calculated in children according to the results of the Dortmund longitudinal growth study. Form birth to the 16th year of life the increase in mean body surface area amounts to 1.

[Nutrient content in human milk: protein, lactose, minerals, trace elements, and thiamin (author's transl)].

Human milk from different periods of lactation was analysed. The following constituents of 100 g human milk decrease from the 1st week to the 2nd-3rd month of lactation: protein from 1.57 to 0.

[Intake of trace elements and heavy metals with the diet of 2-14 years old children. Zinc, manganese, copper, fluoride, iodine, selen; lead, cadmium, mercury (author's transl)].

For 2-14 year old children the intake of the trace elements zinc, manganese, copper, fluoride, iodine, selen, and of the heavy metals, lead, cadmium and mercury is calculated from their food intake. The results give a representative statement of the average supply of trace elements and of the average intake of heavy metals with the diet of children in the Federal Republic of Germany. It is shown that the choice of foodstuffs for the diet has an important influence on the supply of trace elements.