Ms Newton said: “However, watch this space in the future. What we do know is eating foods like wholegrains and fermented foods that increase the diversity of the bacteria in our gut can be beneficial to overall health and mood.”
The dietician also said not getting the right vitamins can affect your mental health.
She said: “Some vitamin deficiencies have been linked to low mood. These include vitamins B6, B12, folate and vitamin D.
“Furthermore, western diets which are high in processed foods, refined grains, sugar, and fat have been more closely associated with depression in some studies.”