The following sources are cited in SAP Digital Futures Issue 32: Why We Must Rethink the Global Food System

Malnutrition is the largest contributor to disease in the world.
Ensure healthy lives and promote well-being for all at all ages, Food and Agriculture Organization of the United Nations. 
http://www.fao.org/sustainable-development-goals/goals/goal-3/en/

Nearly 25% of children worldwide are malnourished, contributing to reduced school performance and impaired brain development.
Undernutrition contributes to nearly half of all deaths in children under 5 and is widespread in Asia and Africa, Unicef, January 2018.
https://data.unicef.org/topic/%20nutrition/malnutrition/#

Food systems account for 70% of the world’s freshwater use, consume 30% of its available energy, and produce 20-30% of its greenhouse emissions.
Food Quality and Food Safety, The World Bank, April 18, 2017.
http://www.worldbank.org/en/topic/food-quality-and-food-safety
For Up to 800 Million Rural Poor, a Strong World Bank Commitment to Agriculture, The World Bank, November 12, 2014.
http://www.worldbank.org/en/news/feature/2014/11/12/for-up-to-800-million-rural-poor-a-strong-world-bank-commitment-to-agriculture

Agriculture is the most significant driver of deforestation, which rose 51% from 2015 to 2016.
 and Global Tree Cover Loss Rose 51 Percent in 2016, World Resources Institute, October 23, 2017.
http://www.wri.org/blog/2017/10/global-tree-cover-loss-rose-51-percent-2016