Latest Otago University research has suggested that eating more fruit and vegetables may make young people calmer, happier and more energetic in their daily life.
Department of Psychology researcher Dr Tamlin Conner, and Dr Caroline Horwath and Bonnie White from Otago's Department of Human Nutrition, investigated the relationship between day-to-day emotions and food consumption.
Dr Connor and her team ran additional analysis to understand which comes first - feeling postive or eating healthier foods.
They found eating fruits and vegetables had a impact on a persons mood the next day.
These findings stood regardless of the BMI of individuals.
"After further analysis we demonstrated that young people would need to consume approximately seven to eight total servings of fruits and vegetables per day to notice a meaningful positive change," said Dr Conner.
She adds that while this research shows a promising connection between healthy foods and healthy moods, further research is necessary.