Voice of America has recently reported that The North Korean diet has changed little over the past 50 years, after the Korean War.
On average, an adult in North Korea consumed about 2,103 calories per day in 2011, only a slight climb from 1,878 per day in 1961. Considering that the recommended daily allowance by the U.N. Food and Agriculture Organization is 2,500kcal, That is significantly lower than the international standard.
The Washington, D.C.-based magazine National Geographic magazine analyzed dietary changes from 1961 to 2011 in 22 countries, including the United States and the two Koreas.
The data also suggest that the average North Korean diet remains not only low in calories, but also unbalanced.
North Koreans eat the most grain-heavy diet of the 22 countries surveyed. North Koreans in 1961 derived more than 70 percent of their entire caloric intake from single grains, such as rice, wheat and maize. The percentage dipped only to 61 percent five decades later. On the other hand, meat consumption stood at only 67 grams in 2011, which has been dropped after years of famines and food shortages.

[Source: Voice Of America]