Can Listening to Your Gut Help MS?

According to experts, friendly bacteria are vital for digestive health – easing everything from bloating to irritable bowel syndrome, and even encouraging weight loss.

But benevolent bugs can have a greater effect on your body than just helping you to fit in your favourite jeans. In fact, there’s mounting evidence from studies on humans and mice that the trillions of bacteria in your gut could hold the key to a number of inflammatory conditions including diabetes obesity, cardiovascular disease – and, yes, even MS.

It seems that changes in the microbiome (the technical term for the genomes of all the micro-organisms living in your body) have a direct impact on the immune system and may even influence susceptibility to autoimmune diseases such as multiple sclerosis. This isn’t such a crazy notion, considering 70% of the body’s immune cells are located in the lymphoid tissue that lines the gut.

The evidence is certainly compelling; One study, for example, found that people with MS had a higher number of Methanobrevibacteriaceae (a snappily named bacterium that appears to activate the immune system), but were low in other bacteria known to calm the immune system.

So how does the microbiome become disrupted? Use of antibiotics, is one cause – both taking them in pill form and consuming the products of animals that have been treated with them – but lifestyle factors can also play a role. Interestingly, differences in diet, vitamin D deficiency, smoking, and alcohol intake all have the ability to affect the microbiome and are all widely accepted risk factors for MS.

Bacteria Under the Microscope

New research initiatives are helping to shed light on the role bacteria plays in autoimmune diseases all the time. For example, The National Institute of Health’s Human Microbiome Project aims to sequence a typical gut microbiome, providing valuable data for identifying gut flora changes in people with disease.

Preliminary clinical trials aimed at altering the gut microbiome in MS patients are also underway, and may prove to be a promising treatment option in the future. For example, certain probiotics were found to stimulate T helper cells, which in turn instruct other cells to behave in specific ways and, eventually, calm the immune system and suppress autoimmune diseases. Researchers concluded that there’s promising evidence for recommending probiotics for both the prevention and treatment of autoimmune disease like MS.

Bacteria-Friendly Foods

In addition to taking probiotic supplements (you’ll need to speak to your doctor before taking these!), there are other ways to boost levels of friendly bacteria in your gut. Fermented foods such as natural live yoghurt, miso (fermented soy) sauerkraut (pickled cabbage), kefir (a cultured milk product) and kimchi (spicy pickled cabbage) provide a broad range of good bacteria. Although foods rich in oligosaccharides, hard-to-digest carbohydrates good bacteria feed off of can also help. These so-called “prebiotic” foods include onions, garlic, asparagus, leeks, artichoke, bananas, tomatoes, wheat, oats, and soy beans.

Avoiding processed sugary foods is another way to look after your gut flora – as well as your immune system and brain. In one study by the Oregon State University, rats who fed on a high-sugar diet, which leads to bacterial changes in the gut bacteria, showed a significant loss of “cognitive flexibility,” or the power to adapt to changing situations, an impairment in memory.

Poo Transplants – Yes, Really!

There are other less savoury ways to replenish levels of friendly bacteria. Researchers are looking into faecal microbiota transplantation, a procedure that involves inserting a small amount of diluted stool sample from a donor into the colon of a recipient. In theory this brings with it a healthy community of bacteria, and has already shown success in the treatment of ulcerative colitis. Recently, though, a new study showed that transplanting faecal bacteria from healthy to diseased mice actually changed the expression of myelin genes and myelin content in the brains of the recipient mice. Which is kind of mind blowing when you think about it.

Yes, bacteria are tiny and icky, and we’d rather not think about them, but they hold important health benefits. In the future, dietary changes and probiotic supplements to replenish healthy gut flora may well be an integral part of MS management – and prevention. In the meantime, there’s nothing to stop you from making friends with friendly bacteria right now. Just follow your gut!

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