Any substance that is consumed for bodily nutritional support 
Rooted in consumers spatial accessibility and affordability of food - relativity to access of food price, socio-economic resources for food by consumers and healthy food 
May be linked to adequate quantities of food and of appropriate quality, supplied through domestic production or imports, including food aid 
The economic products available for human consumption, such as the agricultural commodities from various farmers put together for nutritional requirements to ensure minimum daily food consumption 
The average price level for food across the board (countries, regions and on a global scale), having an impact on producers and consumers of food. Food pricing is determined by the food production process, marketing and distribution 
"When all people at all times have access to sufficient, safe, nutritious food to maintain a healthy and active life. Commonly, the concept of food security is defined as including both physical and economic access to food that meets people's dietary needs as well as their food preferences" (World Health Organization, 2021) 
“The right of peoples to healthy and culturally appropriate food produced through ecologically sound and sustainable methods, and their right to define their food and agriculture systems” (Patel, 2009) 
the sum of actors and interactions along the food value chain.
Refers to safe and nutritious food which meets people’s dietary needs; while people may have access to available food, the selection, conservation, preparation and absorption becomes relevant here; considering how people prepare food, the nutritional knowledge and cultural traditions. 
being adequately or well-nourished at all times.