Nigeria has an alarming number of stunted children. This can hold back the country's long-term productivity if there is no intervention.
Chronic illness, difficulty eating on their own, and even loneliness are just some of the reasons why people over-65 are more likely to be malnourished.
Policy choices made by Senegal, Ghana, Rwanda, Angola, Cameroon, Ethiopia and Togo over the past 15 years have led to significant reductions in child undernourishment.
Many people in a large number of low and middle income countries now experience a 'double burden' of malnutrition.
Inequalities in the nutritional status of poor and rich have been mitigated through various social protection policies, but children in South Africa remain at risk of malnutrition.
In many rural areas, poor people are suffering from malnutrition, which takes the form of stunting and obesity. To change this, their food environments must change.
In-school nutrition programmes can reduce the chances of children suffering from childhood obesity.
Over the last three years Kenya has seen marked improvements in its nutrition-related targets as a result of a national nutrition plan it has implemented.
Research around the importance of the first 1000 days has been gaining traction. The latest links stunting to malnutrition in children.
There are two extremes of malnutrition at play among South Africa's youth - both under nutrition and over nutrition.