Read what a prominent doctor and researcher has to say about the link between taking care of your gut and depression.
Research shows that the food you eat can have a profound effect on your mental health. So, regardless of your mental health problem, the importance of addressing your diet simply cannot be overstated.
In a very real sense, you have two brains — one in your head, and one in your gut. Both are created from the same tissue during fetal development, and they’re connected via your vagus nerve, the tenth cranial nerve that runs from your brain stem to your abdomen.
It is now well established that the vagus nerve is the primary route your gut bacteria use to transmit information to your brain, which helps explain why mental health appears to so intricately connected to your gut microbiome1 — the bacteria and other microbes living in your gut.
For example, researchers recently found that fermented foods helped curb social anxiety disorder in young adults.2,3 Another study found that mice engaged in obsessive-compulsive repetitive behaviors were pacified when given a strain of the bacterium Bacteroides fragilis.
Gut bacteria also produce mood-boosting neurotransmitters like serotonin, dopamine, and gamma-aminobutyric acid (GABA). In fact, the greatest concentration of serotonin is found in your intestines, not your brain.
At the end of the day, if you’re trying to address your mental state, optimizing your gut health should be toward the very top of your list.
The Strong Link Between Sugar and Depression
A number of food ingredients can cause or aggravate depression, but the number one culprit is refined sugar and processed fructose, which feed pathogens in your gut, allowing them to overtake more beneficial bacteria.
Sugar also suppresses the activity of a key growth hormone in your brain called brain-derived neurotrophic factor (BDNF). BDNF levels are critically low in both depression and schizophrenia.
Diets high in sugar also triggers a cascade of chemical reactions in your body that promote chronic inflammation, which over the long term disrupts the normal functioning of your immune system and wreaks havoc on your brain.
Last but not least, refined sugar and processed fructose and grains are key contributors to insulin and leptin resistance, which also plays a significant role in your mental health. One recent study found that high-glycemic foods (including those high in refined grains and added sugar) were associated with higher odds of depression.
Added sugar in particular was strongly associated with depression, reconfirming what William Dufty said in his classic best-selling book, Sugar Blues, first published in 1975. Sometimes it takes a while for science to catch up — in this case 40 years!
Other Processed Food Ingredients That Promote Depression
Other processed food ingredients that can contribute to depression and/or other mental health problems include:
To Heal Depression, Heal Your Gut
As noted by The Epoch Times:7 “In the last 20 years or so, scientists have developed a new respect for bacteria, and the paradigm is turning from a strategy of war, to one of co-existence. Science now considers a robust, diverse bacterial colony to be essential to good health.”
Indeed, the bacteria residing on and in your body outnumber your cells 10 to 1, and viruses in turn outnumber bacteria 10 to 1. In many respects, you are your microbiome.
As Tom Insel, director of the National Institute of Mental Health, told The New York Times: “We are, at least from the standpoint of DNA, more microbial than human. That’s a phenomenal insight and one that we have to take seriously when we think about human development.’’
Rapidly mounting research reveals that many of these little microbes have very specific functions, and as a whole play a profound role in your biological processes and overall health — including your brain health.
“According to Dr. Raphael Kellman, a New York City-based physician who specializes in treating the microbiome...the microbiome not only influences our mood, but it also has a lot to do with how the brain functions and develops over time,” The Epoch Times notes. ‘By improving the microbiome we can actually see positive changes in mood, cognitive function, and executive function,’ Kellman said...
‘The microbiome communicates with the brain through a number of mechanisms... These pathways include direct neurotransmitters that the microbiome produces.
It communicates with the brain via the vagus nerve, and also via the endocrine system in the stress pathway — the hypothalamus, pituitary, and adrenal axis.’
Current treatment for neurological disorders focus on direct changes to brain chemistry, tweaking levels of neurotransmitter chemicals in hopes of tuning in the right balance. But the future of mental health treatment may focus much more on the gut than the brain, and more on food than drugs.”
The fact that improving your microbiome can affect your cognitive function means it’s also important to nourish your gut to stand a better chance against neurodegenerative disorders such as Alzheimer’s. Interestingly, researchers have also found that recurring depression is associated with shrinkage of the hippocampus, the area of your brain associated with memory formation,10 and depression itself appears to be a risk factor for dementia.
Here, it’s important to take your vitamin D levels into account, as both depression and Alzheimer’s disease are associated with vitamin D deficiency.
I have dealt with many health issues and every one of them has either improved or went away completely because of a change in my eating/drinking habits and/or change in lifestyle along with a change in perception in the way I choose to interpret life in general.
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