(CNN) – A new study suggests a possible link between unhealthy food and depression in teenagers.
Researchers at the University of Alabama at Birmingham were behind the report.
They analyzed 84-middle schoolers from low-income communities in Birmingham.
Tests found high levels of sodium and low levels of potassium in the group.
They also saw symptoms of depression with the children and their parents.
A year and half later, researchers tested the group again and noticed more signs of depression.
According to the researchers, high sodium indicates a diet of processed foods and unhealthy snacks.
The low potassium meanwhile can come from a lack of healthy fruits and vegetables.