This document discusses the relationship between forests, trees, and food security/nutrition. It summarizes studies showing that forests and trees contribute significantly to nutrition through the provision of nutritious wild foods, that diverse agroforestry systems support more nutrient-rich diets than monocultures, and that there is a positive relationship between percentage of landscape covered by trees and dietary diversity. However, more evidence is still needed to fully understand these relationships and why they exist. The document argues that sustainably managed forests and trees can play an important role in achieving global food security when integrated into multifunctional landscapes that support both food production and ecosystem services.