Well here we have it. A study that confirms that eating a more nutrient dense diet (ie: more whole foods, less processed foods) is better for your mental health. I’m glad that we got that cleared up.
Nutrient Intakes are Positively Correlated with Higher Levels of Mental Functioning
Ninety-seven community-based adults with mood disorders had their diet evaluated in the areas of carbohydrates, fat, protein vitamins and minerals. There were significant associations between Global Assessment of Functioning (GAF) scores and energy (kilocalories), carbohydrates, fibre, total fat, linoleic acid, riboflavin, niacin, folate, vitamin B6, vitamin B12, pantothenic acid, calcium, phosphorus, potassium, and iron, as well as magnesium and zinc. The magnitude of this association was modest but consistent in showing higher levels of mental function associated with higher intake of nutrients. Depression and mania scores, which were mild to moderate, did not show consistent patterns. When dietary supplement use was added to nutrient intakes from food the GAF scores remained positively correlated. Dr Kaplan noted that, “Doctors should consider counseling their patients to eat unprocessed, natural, healthy foods and refer them to a nutrition professional if specialized dietary consultation is needed.”
Can J Psychiatry. 2012 Feb;57(2):85-92.