Most of us will have heard that health is a measure of overall wellbeing, and not merely the absence of disease. It follows that one of our basic necessities, food, is related to our people’s health. Unfortunately, Australia’s food security is being threatened by climate change. Some of us may not realise it, because it isn’t obvious in our everyday practice or livelihoods. But Australia’s climate is becoming more unpredictable and extreme, which is hitting our agricultural industry the hardest, and in turn, increasing the cost and availability of our food. The change is insidious, and it is already affecting our people’s health and nutrition, particularly in our disadvantaged and low socioeconomic areas. Food security and agriculture is yet another multifaceted issue that us doctors will have to deal with in the coming years, particularly those in General Practice and Public Health.