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The Early Nutrition Academy and the European Commission-funded EURRECA Network of Excellence jointly sponsored a scientific workshop on critical micronutrients in pregnancy, lactation, and infancy. Current knowledge and unresolved questions on the supply of vitamin D, folic acid, and iron for pregnant women, lactating women, and infants, and their health effects were discussed. The question was addressed of whether, and under which circumstances, supplementation with these micronutrients in addition to usual dietary intakes is advisable. The workshop participants concluded that public health strategies for improving supplementation with these micronutrients in pregnancy, lactation, and infancy are required. Further research priorities should focus on adequately powered human intervention trials to obtain a stronger evidence base for the amounts of vitamin D, folic acid, and iron that have optimal effects on health. The conclusions of the workshop should help to inform the scientific community as well as public health policy strategies.

Recent observational studies suggest that mean birth weight and body fat growth in the first year of life have increased continuously over the last decades. Both elevated birth weight and early fat mass are potential risk factors for childhood obesity. Experimental and limited clinical data suggest that the dietary ratio of n–6 to n–3 fatty acids (FAs) during pregnancy is critical for early adipose tissue growth. The aim of this randomized controlled study is to examine the effect of the supplementation with n–3 long-chain polyunsaturated FAs and reduction in the n–6/n–3 ratio in the diet of pregnant women/breast-feeding mothers on adipose tissue growth in their newborns using various methods for the assessment of body fat mass. Measurement of skinfold thickness in the newborn is the primary outcome parameter. Two hundred and four pregnant women will be recruited before the 15th week of gestation and randomly assigned to either active intervention or an isocaloric control diet. This upcoming study will explore the potential of this dietary approach to limit early adipose tissue growth and may contribute to the development of a new strategy for the primary prevention of childhood obesity.