People have to worry a lot less about putting food on the table in the 21st century than at any other time in world history. Calorie counts have been going up a lot, for decades, across every country that formerly used to suffer deficits. Major famines are practically non-existent today, and were not uncommon in prior centuries.<p>See: calorie count increases across Africa, Asia, South America.<p>Poverty and global inequality also have been dropping gradually for decades.<p>Instead of being modern epidemics, these things are former, ancient epidemics that are being eradicated rapidly.