A long awaited report from the Lancet / UCL Commission on Climate Change and Health has just been published called “Health and climate change: policy responses to protect public health”
You need to register to The Lancet to access the report but registration is currently free.
There are quite a few references to food security, including this statement challenging assumptions around sustainable intensification:
Panel 4: Food security, climate change, and human health
The provision for global food demand by 2050 cannot assume improved crop yields through sustainable agricultural intensification because of the negative effects on crop growth from an increased frequency of weather extremes. Multifunctional food production systems will prove important in a warmer world. These systems are managed for benefi ts beyond yield, and provide multiple ecosystem services, support biodiversity, improve nutrition, and can enhance resilience to shocks such as crop failure or pest outbreaks (p 16).
There is also a supplementary video “How can we transform climate change from a threat to an opportunity to improve global health?”
The Guardian has also reported on the report with an article: Climate change threatens 50 years of progress in global health, study says