After dark, North Americans' food choices become much less healthy. Junk foods are spread across the continent at 10 p.m. Eastern. Massive Health hide caption itoggle caption Massive Health The Salt Tracking The Junk Food The World Eats After Dark May 22, 2012 Data from a mobile phone app shows that people all over the world eat less healthy foods later in the day and at night. Is it a lack of healthy options? A lack of willpower? Whatever the answer, it's not good for our health.