Describe how the meaning of food security has been changed by Amartya Sen and others?

(i) In the 1970s, food security was understood as the “availability at all times of adequate supply of basic food-stuffs”.
(ii) Amartya Sen added a new dimension to food security and emphasised the “access” to food through “entitlements” – a combination of “what one can produce, exchange in the market along with state or other socially provided supplies. Thus, there has been a substantial shift in the understanding of food security.
(iii) The 1995 World Food Summit declared, “Food security at the individual, household, regional, national and global levels exists when all people, at all times, have physical and economic access to sufficient, safe and nutritious food to meet their dietary need and food preferences for an active and healthy life” (FAO, 1996, p.3). The declaration further recognises that “poverty eradication is essential to improve access to food,’.