The growth of children in developing countries often declines with the
introduction of complementary foods around the age of 6 mo and contin
ues to decline up to 18 mo. These growth deficits are accompanied by d
elayed development and increased morbidity and mortality. The main cau
se is nutritionally inadequate and often contaminated complementary fo
ods that typically consist of a cereal-based porridge, with little veg
etables and no animal products. Such a diet is bulky, has a low nutrie
nt density and a high content of antinutrients. Promotion of tradition
al household technologies such as germination and fermentation may be
affordable measures to improve the complementary foods. Germination se
rves to reduce the bulkiness and thus increase the energy and nutrient
density. Fermentation leads to hydrolysis of antinutrient phytates an
d hence increased bioavailability of minerals, and may also have benef
icial effects on susceptibility to diarrhea. Alternative strategies in
clude addition of vitamin C-rich foods and meat that enhance absorptio
n of minerals, or direct enrichment of energy and nutrients by additio
n of animal products, such as fat, fish, meat or milk, vegetables or f
ruits, or a micronutrient mix. (C) Elsevier Science Inc. 1998.