as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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explain what a "food desert" is and why they are a problem.
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a "food desert" is an area with little or no access to affordable, healthy food options. it is typically an urban area with a combination of high poverty and few supermarkets or other sources of healthy food. food deserts lead to an array of health problems such as obesity, diabetes, and malnutrition due to the lack of access to fresh and nutritious food.
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