Gut Health and Depression
Do you know that the microbiota present in a human body is composed of millions and trillions of cells? including fungi, viruses, bacteria, and single-celled animals. Among them, the biggest population of microbes reside in the gut. Every one of us has got a unique combination of them in their gut. In the gastrointestinal tract, they amount to around 5 pounds of biomass. This microbiota provides good nutrition and immunity to the body. It also helps to maintain brain and behavior, so there is a link between gut health and depression
“In addition to our own cells, we also need to be aware of the influence exerted by the organisms that colonize our intestines and make up the largest microbial communities in our body”, says neelendu Dey, MD, an instructor in medicine in the Division of Gastroenterology.
Gut microbiota
Role of gut microbiota
- The microbiota present in the gut plays an important role in maintaining the immunological, physiological, and anatomical development in a normal human being.
- Also, it helps to empower the host immune system such that it can fight against any pathogen
- Additionally, it helps in Inhibiting colonization of the GI tract by exogenous pathogens.
- As well as, it helps in digestion for certain food items that are not digested by our stomach.
- And, it helps in the degradation of non-digestible substrates like dietary fibers and endogenous intestinal mucus.
- Also, it helps in the production of certain vitamins like vitamin B and K.
- In addition, it provides immunity to our body and brain.
One of the researches at Colorado University concluded that the composition of microbiota at 2 years of age can be used as a predictor of obesity at the age of 12.
Gut microbiota depression
Effect of gut microbiota on depression
Recent studies proved that the health of your brain gets affected by the health of your gut and vice-versa. The system of communication between the gut and the brain called the Gut-brain axis.
Neuron cells found in our bodies in a large amount. It is interesting to note that our gut has 500 million neurons alone. These neurons connected to our brain through the spinal cords. The vagus nerve regarded as one of the biggest nerves connecting the gut with the brain.
A study of two large groups of Europeans, led by Dr.Sara Vieira-Silva and Dr. Jeroen Raes from the Catholic University of Leuven (Belgium) has found many links between gut microbes and depression.