The pillars of the food security:

The food security depends on some pillars. The first pillar is that food and water to be available and sufficient with suitable quantity. Supplied through domestic . 
       -The other pillar is to be accessible, the capacity that help in obtaining  adequate food through home production,             exchange or food aid.
       - the third pillar which is utilization. The use of food through 
   healthy diet, clean water , means of preservation and correct   
   storage , sanitation and health care where all needs are met.
       - stability is another pillar for food security. But do you know   
   what the meaning of security is ? It means to be food secure , all 
   people must have access to enough food all times. They 
   shouldn't risk losing their food as a result of one of the problems 
   such as economic problems or climate changes.