Answer and Explanation:
Hello. You did not show the text to which this question refers, which makes it impossible for the question to be answered efficiently. In the meantime I will try to help as much as I can.
To find the answer to your question, it is necessary that you read the entire text and find the message that the author wanted to convey, that message is the theme of the text. Then, you should look for phrases, within the text, that support this theme and interpret how those phrases are related to the term "food".