Another day, another TikTok trend. While you might expect crazy workouts or diets from the social media platform, surprisingly, gut health is a popular trend that shows no signs of slowing down with #guttock reaching over 900 million views and counting. There’s all sorts of experts — some legit, most not — with tips on how to “heal your gut” from bone broth to boiled apples to aloe vera juice. And with a 2021 global survey of over 73,000 adults from 33 countries finding that almost half of respondents had gastrointestinal disorders, like irritable bowel syndrome or constipation, it makes sense that a lot of people in the world need help with their gut. But what does “healing your gut” actually mean?

First, it would be helpful to to understand what the term “gut” means. According to  Dr. Will Bulsiewicz, gastroenterologist and New York Times bestselling author of The Fiber Fueled Cookbook, generally refers to the digestive system as a whole. “It’s the part of our body that processes and breaks down food and includes our stomach, small intestine, large intestine, and the enzymes we get from our pancreas, liver and gallbladder,” he tells SheKnows. “It also includes the gut microbiome, which are the trillions of microorganisms, mostly bacteria, that inhabit our colon and play a role in our digestion.”

Gut health, then, says Bulsiewicz, refers to the health of our digestive system, including our ability to process and digest our food without experiencing unwanted symptoms as well as the  nurturing and supporting our gut microbiome, “with the recognition that the gut microbes play a role in more than just digestion. They are also connected to our immune system, metabolism, hormones, mood, brain health and genetic expression.”

Now that we know what “gut health” means, Bulsiewicz shares his insights on how what it means to heal it – and why you need to be way of all that #guttok advice.

Why is gut health so trendy right now?

People have always had issues with their gut so it’s curious why gut health is so “fire” now, but Bulsiewicz says it’s partly due to the “explosion of science” of recent times. “If we focus on the gut microbiome for a moment, which is the topic that most people are referring to when they talk about gut health, we lacked the ability to study these bacteria prior to 2006 or so,” he says. “New laboratory technology opened things up and suddenly we discovered trillions of microbes and thousands of species. We examined the relationship between the gut bacteria and diseases and identified that those with health conditions often had changes in their microbiome characterized by less diversity, less beneficial microbes, and more inflammatory microbes.”

What are some common misconceptions about gut health?

No surprise but there’s a ton of misleading information out there about gut health, which is why Bulsiewicz says when it comes to gut health it’s important to separate what research supports from what the internet claims. “If you’re not careful, the internet will lead you to believe that the secret to healing your gut is bone broth and collagen supplements and that gluten is the cause of most of our health related issues,” he says. “Unfortunately, that’s not the consensus within the scientific community. There are literally no studies to indicate that bone broth or collagen supplements are beneficial to your gut health, and gluten can be problematic for a limited group of people such as those with celiac disease but for the vast majority of people they are far better off eating gluten-containing sourdough bread, barley, or rye.”

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