Nutritional quality measured by total nutrient intake is altogether high in German toddlers, although NQI decreased with increasing age. The NQI is independent of social class. The positive association with formula intake can be explained by the general enrichment of vitamins and minerals of these products.

Iodine is a nutrient contributing to the development of the central nervous system. To assure a sufficient iodine intake, iodine fortification of complementary food (CF) is recommended. We describe the current fortification practice of commercial CF and formula in Germany as an example for other European countries, based on a market survey conducted in autumn 2008. In addition, we estimated the iodine intake of an 8-month-old infant, fed one portion of milk and three complementary meals per day. All formulae were fortified with iodine, and half of CF products. Iodine concentration varied depending on product groups. A partially breast-fed infant getting homemade CF reached less than 50% of the recommended iodine intake. Using infant formula and commercial CF, the recommended intake was exceeded by 39 or 100%, depending on which products were chosen. A well-balanced fortification of commercial CF, including pure infant cereals, would be required to ensure an adequate iodine supply.

In the first study on this topic lunch did not have relevant effects on children's cognitive functioning in the early afternoon. Future research needs to be done to figure out potential methodical and physiological explanations.