You Are What You Eat

 In recent years, studies have hinted at a possible correlation between our gut microbiome, and mental health. While stress and anxiety are typically addressed through psychological or pharmaceutical contexts, recent studies suggest the microbiota in our gut are influential in managing these conditions. This concept is called the gut-brain axis, which is a two-way communication system linking the central nervous system and the gastrointestinal tract. Imbalances of bacteria in our gut (dysbiosis) can disrupt the production of key neurotransmitters like serotonin, dopamine, and GABA, (Kumar et al. 2023), which regulate mood. These imbalances can increase inflammation in the body and stress responses, which contribute to symptoms of anxiety and depression. 

In the context of western health, the leading cause of dysbiosis is the Western diet. The Western diet consists of highly processed foods, saturated fats, refined sugars, and low fiber, which promotes inflammation, reduces microbial diversity, and weakens the gut barrier (CClemente-Suarez et al 2023). These changes in the gut biome ultimately impair gut-brian signaling and contribute to oxidative stress and neuroinflammation, both of which are linked to mental health disorders. However, an unhealthy microbiome is not limited to mental health. 

Research shows that gut microbes also produce compounds like TMAO, which are associated with cardiovascular disease (Tang et at. 2017), thus highlighting the microbiome's far-reaching impact on overall health and well-being. Additional health concerns that stem from an unhealthy microbiome include chronic stress, poor metabolic function, and heart disease - all of which create a feedback loop worsened by poor diet and microbial imbalance. However, our guts are extremely adaptable and increasing the intake of fiber-rich foods, fermented products (i.e greek yogurt), and plant-based nutrients can help restore a person’s gut microbiome.

By restoring balance in your microbiome, you can help improve digestion, which improves nutrient absorption, leading to a stronger immune system, which helps reduce inflammation, ultimately improving cardiovascular health. Additionally, in recent years, psychobiotics are being studied for their ability to directly influence emotional health (Kumar et at. 2023) - a topic for another day. 

It is needless to say that what we eat has profound effects on how we feel, and supporting a healthy gut through cleaner dietary choices may offer a powerful tool for managing stress and anxiety.

Works Cited:

Clemente-Suárez, V. J., Beltrán-Velasco, A. I., Redondo-Flórez, L., Martín-Rodríguez, A., & Tornero-Aguilera, J. F. (2023). Global Impacts of Western Diet and Its Effects on Metabolism and Health: A Narrative Review. Nutrients, 15(12), 2749. https://doi.org/10.3390/nu15122749

Kumar, A., Pramanik, J., Goyal, N., Chauhan, D., Sivamaruthi, B. S., Prajapati, B. G., & Chaiyasut, C. (2023). Gut Microbiota in Anxiety and Depression: Unveiling the Relationships and Management Options. Pharmaceuticals (Basel, Switzerland), 16(4), 565. https://doi.org/10.3390/ph16040565

Lewandowska-Pietruszka, Z., Figlerowicz, M., & Mazur-Melewska, K. (2022). The History of the Intestinal Microbiota and the Gut-Brain Axis. Pathogens (Basel, Switzerland), 11(12), 1540. https://doi.org/10.3390/pathogens11121540