Socioeconomic Status, Dietary Diversity, and Household Food Security as Correlates of Nutritional Status among Under-Five Children in Ibadan South- West, Oyo State, Nigeria
In a cross-sectional study of under-five children in Ibadan, Nigeria, socioeconomic status was found to be the primary determinant of household food insecurity, while dietary diversity remained uniformly low across all income levels and showed no significant association with the children's nutritional status.
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In many parts of the world, a child's growth is a direct reflection of what their family can put on the table. When a household cannot reliably access enough safe and nutritious food, the consequences are often visible in the child's body: they may be shorter than expected for their age, too thin, or simply underweight. Scientists call this state of being undernourished "malnutrition," and it is a persistent challenge in sub-Saharan Africa. To understand why some children thrive while others struggle, researchers often look at two main factors: the family's financial standing, known as socioeconomic status, and the variety of foods the child eats. A diverse diet, rich in different food groups like eggs, vegetables, and meats, is generally believed to be the key to good health. However, the link between money, food variety, and a child's actual growth is not always straightforward, especially in rapidly growing cities where rich and poor families live side by side.
A team of researchers set out to untangle these relationships in Ibadan, a major city in southwestern Nigeria. They focused on 215 families with young children, ranging from six months to just under five years old. The study took place across twelve different neighborhoods, carefully chosen to represent the full spectrum of wealth in the city, from the most affluent estates to the poorest settlements. The researchers wanted to see if a family's money level predicted whether they had enough food, whether their children ate a varied diet, and ultimately, whether the children were growing well. They measured the children's height and weight to determine their nutritional status, asked parents about their food access over the past month, and recorded exactly what the children had eaten in the last twenty-four hours.
The results painted a stark picture of inequality. The study found that food insecurity, or the lack of reliable access to food, was not spread evenly across the city. Instead, it followed a steep ladder of wealth. In the wealthiest neighborhoods, less than half of the households struggled to get enough food. But as the researchers moved down the economic ladder, the situation worsened dramatically. In the middle-income areas, three out of four households faced food insecurity. In the poorest communities, the problem was nearly universal, affecting almost every single household. The data showed that a family's financial class was the strongest predictor of whether they had enough to eat, a relationship that held true even when the researchers accounted for other factors like family size or the age of the child.
Surprisingly, the study revealed that money did not buy a better diet in the way one might expect. While the wealthy families were much more likely to have enough food overall, the variety of food their children ate was just as poor as that of the poorest families. Across all economic levels, only about one-third of the children met the standard for a diverse diet. Most children ate a lot of starchy staples like grains and tubers, but very few consumed nutrient-dense foods like eggs, meat, or vitamin-rich vegetables. This lack of variety was a universal problem, cutting across the entire city regardless of how much money the parents earned. It suggested that even families with some financial means were not feeding their children a wide enough range of foods.
Perhaps the most unexpected finding was that neither the lack of food variety nor the struggle to get enough food showed a clear, direct link to the children's growth measurements in this specific snapshot in time. The researchers found no statistical connection between a child's diet on a single day or a family's food struggles over a month and whether that child was stunted, wasted, or underweight. This does not mean that food and money are unimportant for growth; rather, it suggests that a child's nutritional status is shaped by a long and complex history of illness, birth conditions, and cumulative feeding patterns that a single visit cannot fully capture. The study indicates that in this urban setting, the immediate measure of what a child ate yesterday or whether the family worried about food last month was not enough to explain why a child was short or thin.
The researchers concluded that addressing child malnutrition in cities like Ibadan requires a two-pronged approach. Because food insecurity is so heavily concentrated among the poorest families, interventions need to be targeted specifically at those who are struggling the most to survive. At the same time, the fact that poor diets are a problem for everyone, rich and poor alike, means that education on how to create a more varied and nutritious diet must be shared with all families. The study highlights that while money determines who has enough to eat, it does not automatically determine what that food looks like, and solving the problem of child growth requires fixing both the wallet and the plate.
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