Climate - Global warming can cause droughts and floods, which can damage crops and lead to a shortage of food. This makes food harder to get and more expensive.
Poverty - Poor countries can't afford things like technology, irrigation, pesticides, or fertilisers for their crops. This leads to smaller harvests, and people can't afford the food that is available.
Lack of Education - Lack of education means fewer job opportunities, so people can't earn enough to buy enough food.
Access to water - Crops and animals need water to grow. Farmers use irrigation to bring water where it's needed.
Conflicts and wars - Wars and conflicts make food even harder to get. Farming stops, crops and animals are ruined, and people may have to leave. It also stops food supplies from reaching those in need.
Rising food prices - Food prices may go up because fertilisers, animal feed, processing, and transport costs are higher. LICs are the most affected.
Trade - Trade and trade rules affect how much food is available worldwide. They can change how much food is produced and how much can be brought in from other countries.
Transport - How food is stored affects its safety and quality, especially during transportation. Food can spoil or get damaged while being moved.
Rising population - LICs have the fastest growing populations, so there are more people to feed. As the population grows, there's less land for farming.