Podcast 281: Foods That Can Reduce Anxiety, Depression & PTSD with Nutritional Psychiatrist Dr. Uma Naidoo

In this podcast (episode #281) and blog, I speak with Harvard-trained nutritional psychiatrist Dr. Uma Naidoo about the relationship between our diet and mental health.

Nutritional psychiatry is the use of healthy, whole foods to improve mental fitness, which includes our emotional health and mental wellbeing. This is fairly new science; over the past two decades, scientists have just begun to realize that what we eat and how we feel are very connected. 

Nutritional psychiatry is based on personalized eating plans that suit the individual best. It is not a “one size fits all” program. Rather, nutritional psychiatry is based on a holistic, integrated and functional approach that allows you to work closely with your physician to design an eating plan that works best for you and your mind. Dr. Uma talks about this approach to mental health in detail in her new book This is Your Brain on Food.

As she notes, when it comes to mental health, we need to speak to the person, not just label them and move on. We need to understand the context behind their mental distress and take a holistic and integrated approach to their healing. What are ways to help the patient feel better that actually work for them?

The basis of nutritional psychiatry is the conversation that goes on between the gut and the brain. Both the gut and the brain arise from the exact same cells in the body during fetal development, and they are connected through the vagus nerve—a two-way superhighway between these two organs that is busy 24/7. In fact, around 95% of our serotonin is produced in the gut, while it is also responsible for an estimated 75% of our immune system. The gut truly is a massive and important organ!

As Dr. Uma notes, the close relationship between the gut and brain makes what we eat very important when it comes to our mental health. For example, highly processed and refined junks foods can impact the gut-brain connection if eaten regularly over time and affect our mental and emotional wellbeing. On the other hand, during the colder and darker months, what we eat (such as foods high in Vitamin D) can help us feel better and manage seasonal affective disorder. 

One of the easiest tweaks many of us can make right now is to eat more fruits and vegetables. As Dr. Uma notes, this is one of the main principles of the Mediterranean diet. But does this mean that the Mediterranean diet works for everyone? No—we are all different, and we all have different nutritional needs when it comes to our mind and body. There are many ways to incorporate good foods into our diet to improve our physical and mental health, such as eating more fiber-rich foods and fermented foods, which studies have shown can help improve overall gut health and the communication between the gut and brain. 

Of course, in a perfect world, we should try to get most of our nutrients from our food. But because we don’t live in a perfect world, sometimes we may need to supplement (with the advice of a medical professional) to get what we may be missing in our diets. 

For more information on food and mental health, listen to my podcast with Dr. Uma (episode #281), check out her bookand sign up for her newsletter. If you enjoy listening to my podcast, please consider leaving a 5-star review and subscribing. And keep sharing episodes with friends and family and on social media. (Don’t forget to tag me so I can see your posts!) 

This podcast was sponsored by: 

Four Sigmatic, the best superfoods out there! I’ve been starting my day with Four Sigmatic’s Ground Mushroom Coffee with Lion’s Mane instead of regular coffee, and I love how it helps me focus so I can get things done and has really helped me clean up my mental mess! All Four Sigmatic products are organic, vegan, and gluten-free. Plus, every single batch is third-party lab tested to ensure its purity and safety, so you know you’re getting the highest quality ingredients possible. Get up to 40% off + Free Shipping on select bundles. To claim this deal you MUST go to Foursigmatic.com/DRLEAF. 

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Podcast Highlights 

1:43 What is nutritional psychiatry? 

4:38, 6:25 This is your brain on food

5:16 Why we need to be careful of just labeling certain mental health disorders

12:30 The gut-brain romance 

16:40 Food & seasonal affective disorder 

17:05 Is the Mediterranean diet good for our brains? 

20:00 Leaky gut & nutritional psychiatry 

27:40 How nutrition can empower you & make you feel more in control of your mental health

29:00 Supplements & mental health 

33:20 Dietary fiber, fermented foods & anxiety 

38:00 Why we need to be careful of quick-fix solutions 

39:00 Insomnia & nutritional psychiatry 

41:30 How we can help manage PTSD & ADHD using certain foods

This podcast and blog is for educational purposes only and is not intended as medical advice. We always encourage each person to make the decision that seems best for their situation with the guidance of a medical professional.

Switch On Your Brain LLC. is providing this podcast as a public service. Reference to any specific viewpoint or entity does not constitute an endorsement or recommendation by our organization. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. If you have any questions about this disclaimer, please contact info@drleaf.com.