Why Gut Issues Are Often Nervous System Issues

Ever eaten the exact same meal twice and had completely different digestion each time? That's not random and it's not the food. Your nervous system is the master controller of digestion, and when it's in threat mode, gut function becomes optional. In this episode, we're unpacking why stress and nervous system state directly affect stomach acid, enzymes, motility, and food sensitivities and why so many gut protocols fail because they skip this piece entirely. If you've been doing all the gut things and still not seeing results, this is probably why.

Transcript

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Hey and welcome back to the Rooted Conversations Podcast. I'm Mackenzie Grace and today we're getting into something that I genuinely think is one of the most overlooked pieces of gut health. And once you hear it, I think it's gonna reframe a lot of things for you. So we're gonna talk about the nervous system, specifically why your gut issues might not actually be gut issues and why bloating, the acid reflux, the food sensitivities that seem to come out of nowhere, they might be your nervous system talking and not just your stomach. So this one is going to be short, sharp, and I promise it's gonna make some things click. So let's dive in. I want to start with a scenario, and I want you to sit with it for a second because I know at least some of you are gonna recognize yourselves in it. You eat a meal, it's fine. Maybe it's something you eat all the time: chicken, rice, and a salad, whatever your normal go-to is, and you feel totally fine after. But then a few days later, you eat the exact same thing, same ingredients, same portion, same time of the day, and this time you're bloated, uncomfortable, and questioning every single bite. Maybe you're running through a small mental list of what you did differently, what could have caused it, and whether you were some suddenly developing a new sensitivity. Same meal, same food, but completely different digestion. And the question that you're probably not asking or are asking, but don't know the answer to is why? Not what food is the problem, but why does the same food cause a different reaction? Because if it were purely about the food, then it would be consistent and it would react the same every single time. But it doesn't, because digestion isn't just about food. Digestion is actually controlled by your nervous system. And here's what I need you to understand at a fundamental level: your body only digests well when it feels safe. That is not a metaphor, that is actual physiology. So we have a parasympathetic and a sympathetic nervous system, and our body is either constantly running in one or the other. Your nervous system is constantly running a background assessment of your environment, your stress, your perceived safety. And when it senses stress, stress, sorry, when it's when it senses threat, whether that's a real physical threat, a work deadline, a hard conversation, a terrible night of sleep, alcohol, low grade chronic stress, hum, that seems to be many of us are operating under under, then digestion becomes optional and your body switches into fight or flight. And this is because digestion is not important. It's optional when we look through the lens of survival. And our bodies are designed for survival. So here's what actually happens when your nervous system perceives threat. Blood flow moves away from your digestive organs and towards your muscles and brain, you know, in case you need to run, stomach acid production decreases, digestive enzymes drop, bile flow slows down, and gut motility, the muscle that contracts and moves through moves food throughout your system, becomes erratic. Erratic motility looks like things moving too slow, which is constipation, things moving too fast, which is diarrhea, or this chaotic, unpredictable mix of both that leaves you completely baffled and confused. And then there's bloating, the reflux and the food that sits like a brick, the meals that seem totally random and how they make you feel. None of it is actually random. This is because your nervous system was likely in fight or flight and not in a rest and digest state. So when we talk about food sensitivities, this is one that gets people because most of us have been taught to think about food sensitivities as about being about food, like, oh, I'm sensitive to gluten, I'm sensitive to dairy, eggs, or whatever, and therefore you feel like you react every time you eat it. But food sensitivities are often contextual. So it's not always about the food. It's about the state that your nervous system is in when you eat. So think about all the variables that affect how well you digest on every given day, your stress level, how well you slept, whether you ate in a rush or sitting at a desk in a meeting, whether you were already anxious or if you were calm while you sat down to eat, whether you were in a high pressure season at work or in the middle of an argument with someone or just coming off a week of not great sleep. All of these things will shift your nervous system into that fight or flight state. And your nervous system state determines how your stomach acid works, how your enzymes release, and how well your gut is actually processing what you just ate. So the same food when you're eating in that stressed nervous system state in a depleted body or in the middle of a hard week, that food might cause food sensitivities or bad reactions. That same food on a food on a slow Sunday when you're actually in a rest and digest state will be totally fine. So this is why gut symptoms tend to flare more during stressful seasons, not just because you started suddenly eating worse, but because your nervous system is under more load and your digestion is going to be one of the first things to go. So here's where this gets really important for those of you who are in the thick of a gut healing protocol right now and not getting the results that you expected. A lot of women, understandably, because this is of what a lot of practitioners recommend, jump straight into the heavy stuff. So antimicrobial protocols, aggressive elimination diets, long supplement stacks, and the works with the whole thing. And sometimes that's necessary because there are real pathogens, dysbiosis, and real structural things happening in the gut that need to be addressed that can cause food sensitivities, that can cause bloating, that can cause all of these issues that we're talking about here today. But the problem is if you do all of those things and the nervous system is still stuck in fight or flight when you start your protocol or within the time that you're doing that protocol, then digestion is still not going to work well. Your supplements are not going to absorb the way that they should. The protocol is going to feel harsh and overwhelming because your gut can literally not handle the load and you might feel worse, not because the protocol isn't working, but because you didn't have the foundation there first. And the order matters. I cannot say that enough. The order matters. You cannot throw an aggressive gut protocol at a body that doesn't feel safe and expect it to work. You have to build the conditions that allow digestion to function first. And a huge part of that is your nervous system support. And this is why I take things really seriously when I'm working with clients. We don't start by doing the most, we actually start by building the foundation, calming the nervous system that controls digestion. So when we actually address the gut directly, the body will receive it and respond to it. Because once digestion genuinely improves, then everything else becomes easier. That absorption comes back online, your energy improves, hormones are supported, and the downstream effect of a calm functional gut are enormous, but you have to start in the right place. So, what does this mean for you and what do you do with this information? Well, first, start paying attention to your context, not just your food. Instead of just logging what you ate, start noticing how you felt before and during the meal. Were you rushed, stressed? Did you eat in front of a screen while you were working? Were you already depleted from a bad week? This context is data. Second, take your nervous system state seriously as a part of your gut healing protocol. This means prioritizing sleep, building in actual rest, and not just I'll relax when things slow down, but intentional scheduled rest, eating in a calm environment whenever you can. Things that I work with with my clients is having a few deep breaths before a meal can literally activate your parasympathetic nervous system, which is that rest and digest state that we were talking about. So next time you go to sit down, take three deep breaths before you start eating, and you'll notice so many improvements in your digestion. Also, making sure you're chewing your food because if you're eating in a very like stressed and fight or flight state, you're probably scarfing back a lot of food and not chewing as much as you need to be. You need to be chewing your food to the consistency in applesauce before you swallow it because digestion actually starts in your mouth and not just in your gut. So 20 to 30 bites per mouthful of food can really happen, uh, can really help when it comes to digestion. And then thirdly, if you've been doing all of the gut things and still not getting results, consider whether your nervous system has been a part of the pitcher because for a lot of women, it is a big missing piece. So, in closing, you cannot calm a gut, you cannot have a calm gut that feels under a constant state of stress. That's it. That's the whole message here today. And I wish someone had told me this plainly years ago. Gut healing doesn't just start in the gut, it starts with the nervous system that controls it. And when you address both the root cause and the nervous system, that's when things actually change. So if you felt like today's episode resonated with you, share it on your story and tag me because I'd love to hear who's tuning in to the podcast and what you're really enjoying.