Why You Shouldn't Worry About Your 'Gut Health'

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Why You Shouldn't Worry About Your 'Gut Health'

Your digestive system is a hugely important part of your body, and keeping it healthly is hugely important. Without good gut health, you might be in pain, or suffer embarrassing symptoms, or worse. But it does not follow that you need to load up on foods or products that promise to improve your gut health.

Gut health, it turns out, is not a well-defined concept. That means it’s not always possible to tell whether it’s improving or whether you even have a problem with it in the first place. Two researchers from the Food & Mood Centre at Deakin University wrote in a Lancet journal article and on the Conversation about the fact that gut health has become more of a marketing buzzword than a scientific or medical phenomenon.

What do we even mean when we talk about gut health? Often it’s either the absence of unpleasant symptoms like diarrhea, or the absence of medical conditions like Crohn’s disease. These conditions and symptoms are each different, so there’s not a single state of “gut health” that you can achieve to prevent all of them. Scientists are still trying to understand the details, and research is ongoing.

The microbiome is also important—but again, scientists have not managed to come up with a way to reliably tell the difference between a healthy and an unhealthy microbiome. The exact population of microbes in two healthy people’s guts may differ, for example. And despite ongoing research, we still can’t test your gut microbes and tell you what’s wrong with you (outside of a few specific cases, like Clostridium difficile infection).

On the other hand, sometimes the idea of "gut health" is just code for "being skinny." If you convince your TikTok followers that they can have a flat belly if only they get their gut health in order, you can sell them affiliate-marketed probiotics.

"Gut health" talk is often just marketing

Whatever the angle, the idea that gut health is important to overall health has provided a marketing boost for a plethora of products, foods, and practices that are supposed to be good for you. Probiotics, for example, are suggested to treat or prevent gastrointestinal troubles. But many fermented foods like yogurt and kombucha don’t affect the makeup of the gut microbiome, and even when they do, it's not always clear if they’re affecting it for the better.

Basically, if someone says a certain food or diet is supposed to be good for your gut health, they’re usually making assumptions they can’t back up. As scientists Amy Loughman and Heidi Staudacher write:

There is no solid human evidence yet that intake of processed foods or refined sugar leads to negative effects on the entirety of the aforementioned gut health parameters. Neither are lists of top ten gut health foods particularly helpful or insightful; instead they simplify the complexity of diet to a handful of foods high in fibre without appreciation of important nuances.

They also point out that there are many types of fiber and that they probably aren’t all equally good for us; there is evidence that some fibers could be harmful if we eat too much of them.

A generally varied diet that includes whole grains, fruits, and vegetables will probably be good for your gut health. So will other healthy habits like exercising and avoiding smoking. As they further discuss in the Conversation article, gut health isn’t a thing you achieve by drinking kombucha or eschewing sugar; rather, “it’s dietary patterns and overall habits, not individual foods, that shift the dial.”

Source: Why You Shouldn't Worry About Your 'Gut Health'