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March is National Nutrition Month!

In This Issue:

Can What We Eat Effect Our Mood? | Mood-Pleasing Recipes

Can What We Eat Effect Our Mood?

The Diet Change group watched a 13-minute video from the registered dietitian, were provided with handouts and given a small hamper of food items. Follow up consisted of two, five-minute phone calls.

This study showed that college students can make changes to their diet for just three weeks and see positive changes in mood, including reduced depression, stress and anxiety. It also revealed another interesting result: The study participants in the diet change group had lower food cost!

This study showed that college students can make changes to their diet for just three weeks and see positive changes in mood, including reduced depression, stress and anxiety.

So what were the diet changes made by the students? This study instructed the students to decrease refined carbohydrates, sugar, fatty or processed meats, and soft drinks. Instead, they were to follow a Mediterranean-style diet with plentiful servings of vegetables, fruits, lean proteins, legumes, whole grains, nuts, seeds and an abundance of olive oil. Data analysis showed that the reduction in processed foods contributed significantly to the improvement in depression symptoms. Eating healthy foods and avoiding processed foods were both important to reducing symptoms of depression, anxiety and stress. The study recommended avoiding foods that come in a package with multiple ingredients and foods with more than 10 g. of sugar per 100 g. These included soft drinks, chocolates, sweets and fried foods.

The Diet Change group ate about six more servings weekly of fruits and vegetables compared to the Control group. Those who had a greater increase in fruit and vegetable intake had the greatest improvement in depression symptoms.

The study’s author suggests that diet improvement be a part of treatment for depression alongside psychological therapy and/or medications.

This study supports the findings of the SMILES trial, which was also a randomized trial of dietary improvement for adults with depression. The study also used a modified Mediterranean diet in the treatment group. The treatment group also showed a significant reduction in depression symptoms, which appeared to be independent of other changes, including BMI and physical activity. To hear from one of the SMILES trial researchers click here.

Both studies emulated the Mediterranean diet. While these studies showed that eating a Mediterranean-style diet while avoiding processed foods supports mental health, they did not tell us why. We still don’t know what aspect of the foods we eat bring about the desired effect. Inflammation and oxidative stress have been linked to depression. Foods such as fruits and vegetables, especially cruciferous vegetables like cauliflower and kale, battle inflammation and oxidative stress

The Australian study included turmeric and cinnamon in their diet protocol. Turmeric has had many studies supporting its anti-inflammatory properties; cinnamon also has been linked to positive health effects. A diet high in plant foods and low in processed foods supports a healthy microbiome, which may affect mental health. Both studies emphasized olive oil, which is phytonutrient rich, high in antioxidants, anti-inflammatory and provides healthy fats.

Perhaps the most significant outcome from this study is that it was only three weeks long and successfully followed by the students. In just three weeks, students with depression symptoms saw significant improvement in mood simply by improving their diet and they saved money by spending less on food.

Mood-Pleasing Recipes

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