The children are much smaller than they should be for their age. A child that you think is a healthy two-year-old is probably a very underfed four-year old.
He said that of 300 million underfed children in the world, 130 million, most of them girls, do not go to school.
Interestingly, scientists learned that underfed rodents lived up to 40% longer than their well-fed counterparts.
In some countries experiencing obesity problems, malnutrition also exists; whether underfed or overfed, people aren't getting the nutrients and vitamins that lead to proper development.