According to the USDA, more than 47.4 million people in the United States experience food insecurity each year and three ways you can help. (Family Features) The holiday season is often a time of joy, connection and celebration. For millions of families across the country, however, it is also a season of uncertainty, wondering how to put food on the table or meet other essential needs. According to the USDA, more than 47.4 million people in the United States experience…