In this episode, Dr. Emily Deans discusses the field of evolutionary psychiatry and its connection to mental health. Dr. Deans is a board certified psychiatrist and writes the blog Evolutionary Psychiatry, based on the observation that our brains are healthiest when we embrace a diet and lifestyle reflecting the conditions under which we humans evolved. Dr. Deans has presented at the Ancestral Health Symposium in 2012 and 2018 on topics related to this theme.
In this discussion, we dive into what some of the recent clinical studies are telling us about the connection between food and mood disorders conditions such as depression. In particular, she reviews studies showing antidepressive effects of a Meditarrean diet with meat, and also omega3 supplementation. Dr. Deans emphasizes the importance of considering individual dietary needs and preferences when implementing diet interventions in psychiatric practice. She shares success stories of patients who have experienced improvements in mood through dietary changes, including ketogenic and lowcarb diets. She also highlights the connection between glucose tolerance and violent behavior, and the importance of smoothing out blood sugar response by incorporating whole foods into the diet.
Dr. Deans discusses the emerging recognition within the medical profession of food's impact on mental health. She shares her approach to helping patients reduce or come off psychiatric medications, emphasizing the importance of a multifactorial approach that includes diet, exercise, and psychotherapy. Dr. Deans also discusses the potential risks and benefits of dietary changes for individuals with eating disorders.

Resources:
Blog: Evolutionary Psychology, at Psychology Today:
https://www.psychologytoday.com/us/bl...

Studies:
Smiles Trial (Felice Jacka et al):
https://foodandmoodcentre.com.au/smil...
ISNPR position statement on nutrition and psychiatry:
https://www.ncbi.nlm.nih.gov/pmc/arti...
ISNPR guidelines on the use of omega 3 fatty acids in the treatment of major depressive disorder:
https://pubmed.ncbi.nlm.nih.gov/31480...
Mediterranean diet and older adults and depression over time:
https://www.ncbi.nlm.nih.gov/pmc/arti...
Ketogenic diet and mood and anxiety disorders:
https://www.ncbi.nlm.nih.gov/pmc/arti...
Microbiome and depression in mice (and cannabinoids!):
https://www.nature.com/articles/s4146...

Here is a guide to topics discussed in this podcast episode:

Time Topic
01:30 Introduction to Evolutionary Psychiatry and Nutritional Psychology
04:32 Dr. Deans' interest in the connection between diet and mental health
08:00 The evidence from observational and randomized controlled studies
12:00 Felice Jacka's Smiles trial: Adding meat to diet reduced depression
19:03 Effects of single nutrients on mental health
20:10 Antidepressive benefits of omega3 fatty acids
22:22 Mental health in premodern populations
26:43 Impact of sugar and processed carbohydrates on mood
28:22 Physiological mechanisms: inflammation and mitochondrial dysfunction
34:37 Using diet as a tool in clinical psychiatric practice
43:20 Success stories: dietary reversal of psychosis and bipolar disorder
49:12 Ketogenic and "SlowCarb" diets for control of anxiety and panic attacks
51:05 Violent behavior and poor glucose tolerance
53:00 The bidirectional relationship between physical and mental health
53:33 Medical profession's belated acceptance of the foodmood connection
55:58 Helping patients reduce or come off of psychiatric medications
58:07 Successes in reducing or stopping medications
58:28 Dietary changes and eating disorders
1:01:10 Current work and future plans