Concluding remarks. The Window of Opportunity: Pre-Pregnancy to 24 Months of Age.

This symposium focused on the window of opportunity for nutritional interventions to prevent chronic disease. Following a recommendation by the UN Standing Committee on Nutrition, 2006, the window of opportunity was defined as the period from conception to 2 years after birth. We discussed what is known and what needs to be known about (a) growth during this window, (b) critical periods of development, (c) the effects of nutrition, and (d) possible interventions to improve nutrition.