how many calories does a human need to survive?
<answer> women require 1,600 to 2,400 calories daily, while men need 2,000 to 3,000 calories a day. <context> Women who eat 1,200 calories and men who consume 1,500 calories a day will likely lose weight. To maintain current body weights, women often require 1,600 to 2,400 calories daily, while many adult men need 2,000 to 3,000 calories a day, according to the publication Dietary Guidelines for Americans, 2010..o maintain current body weights, women often require 1,600 to 2,400 calories daily, while many adult men need 2,000 to 3,000 calories a day, according to the publication Dietary Guidelines for Americans, 2010..