How to Improve Gut Health: Is Your Microbiome Asking for an Oil Change?

You take your car in for an oil change.

You replace filters. You check the tires. You pay attention when the warning light comes on.

But what happens when your body starts flashing warning signs?

Bloating. Constipation. Diarrhea. Reflux. Brain fog. Fatigue. Anxiety. Cramping. Food sensitivities. Gas. Unpredictable trips to the bathroom.

Do you keep pushing through?

Do you accept that this is simply how your body works now?

Or do you start asking better questions about your gut health?

More than 100 million Americans struggle with digestive issues.

Many go through colonoscopies, endoscopies, blood work, medications, elimination diets, supplements, and appointment after appointment, only to hear some version of:

“Everything looks normal.”

But what happens when the test is normal and you still don’t feel normal?

That is where the conversation needs to continue.

If you are wondering how to improve gut health, the answer is not always another supplement, another restrictive diet, or another list of foods to avoid.

Sometimes the first step is understanding what your symptoms may be telling you about your digestive system, gut microbiome, nutrition, lifestyle, and overall health.

What Are the Signs of Poor Gut Health?

One listener, Liz, shared that she had been struggling with bloating, cramping, unpredictable bowel movements, and other digestive symptoms for years.

She had undergone testing.

She had been diagnosed with irritable bowel syndrome, or IBS.

And yet she still did not have the relief she needed.

This is something I hear far too often.

IBS may give your symptoms a name, but a name does not necessarily tell us why those symptoms are happening.

Bloating, constipation, diarrhea, gas, stomach pain, food sensitivities, and changes in digestion can all be signs that something deserves a closer look. And digestive symptoms are not the only things that matter.

Fatigue, brain fog, mood changes, and other symptoms may also be part of the bigger picture.

If your digestive problems are interfering with your ability to work, spend time with your children or grandchildren, exercise, travel, enjoy your hobbies, or simply leave the house without thinking about the nearest bathroom, then your symptoms are affecting your quality of life.

You deserve to keep asking questions.

What is happening in the gut microbiome?

Are you absorbing nutrients properly?

Are there food sensitivities involved?

Is there an imbalance in gut bacteria?

Are there other factors affecting digestion or inflammation?

Could something deeper be contributing to the symptoms?

This is why I continue to say:

You have to become your own healthcare advocate.

That does not mean ignoring medical professionals or diagnosing yourself on social media.

It means becoming involved in your own care, asking questions, requesting your records, understanding your test results, and seeking additional help when something still does not feel right.

I learned this lesson personally.

Years ago, I was discharged from the hospital even though something was seriously wrong. I became septic and eventually required emergency surgery, followed by additional surgeries.

Eventually, I reached a point where I said, “Enough is enough.”

I sought functional nutrition testing, began digging deeper, and changed the way I approached my own health.

That experience is one of the reasons I am so passionate about helping other people do the same.

How to Improve Gut Health: Stop Guessing and Start Asking Questions

One of my favorite sayings is:

Test, don’t guess.

There is so much nutrition information coming at you every day.

Take this supplement.

Stop eating carbohydrates.

Go keto.

Try intermittent fasting.

Remove gluten.

Eat more fiber.

Take probiotics.

Add fermented foods.

Drink this.

Avoid that.

No wonder people are confused.

And sometimes people are spending hundreds of dollars every month on supplements without knowing whether those supplements are actually addressing what their bodies need.

More is not always better.

Restrictive is not always healthier.

And healthy eating should not require you to live in fear of food.

When people ask how to improve gut health, they often expect a simple list of foods, probiotics, or supplements. But gut health is more complicated than that.

Your digestive tract contains trillions of microorganisms, including bacteria that make up part of your gut microbiome.

Diet, nutrition, stress, lifestyle habits, and many other factors can influence this complex environment.

Instead of guessing, we need information.

When appropriate, functional testing can give us a much more detailed look at what may be happening inside the body.

Some microbiome testing looks at dozens of different markers that may help us understand digestion, absorption, bacteria, inflammation, and other factors.

The goal is not to collect test results for the sake of collecting test results.

The goal is to ask:

What is this information telling us, and what can we do with it?

Can Stress Harm Your Gut Health?

Another listener, Nancy, asked an important question.

She had struggled with depression and anxiety for years and had recently developed worsening digestive symptoms, including bloating and constipation.

She wondered:

Could my mental health and my digestive health be connected?

The gut and brain communicate with each other constantly.

This relationship is often referred to as the gut-brain connection.

That is why I often say:

Fix the gut, fix the brain. Fix the brain, fix the gut.

If you have ever felt nauseated before a stressful event, lost your appetite during anxiety, developed stomach problems during an emotionally difficult period, or noticed that digestive issues seem to affect your mood, you have already experienced pieces of that connection.

Stress can affect the way we eat, sleep, move, and take care of ourselves.

And when we are thinking about ways to support gut health, those lifestyle factors deserve attention too.

This does not mean every emotional issue begins in the gut.

It also does not mean every digestive issue can be fixed with positive thinking.

It means we should stop pretending these systems operate completely independently.

Nutrition matters.

Digestion matters.

Stress matters.

Sleep matters.

Physical activity matters.

Emotional health matters.

The gut microbiome matters.

And when someone has been struggling for years, we may need to look at the whole person, rather than addressing each symptom in isolation.

What Foods Improve Gut Health?

This is where people sometimes get overwhelmed.

They hear about the microbiome.

Then probiotics.

Then prebiotics.

Then fermented foods like yogurt and kefir.

Then fiber.

Then micronutrients.

Then food sensitivities.

Then short-chain fatty acids.

And suddenly improving their gut health feels like a second full-time job.

It does not have to be that way.

Start with one step.

Maybe your first step is reducing the amount of ultra-processed food you are eating.

Not eliminating everything overnight.

Not going on another extreme diet.

Not surviving on 800 calories a day.

Simply improving the quality and variety of the foods you eat.

A balanced diet can include a variety of fruits, vegetables, whole grains, nuts, beans, lentils, legumes, protein sources, and other nutrient-rich foods based on what is appropriate for your individual needs.

Foods containing fiber can also play an important role in digestion and provide nourishment for certain bacteria within the gut.

For some people, foods containing probiotics or naturally fermented foods such as yogurt and kefir may also have a place in a balanced diet.

Prebiotic foods, including certain vegetables, onions, and garlic, can provide fuel for beneficial gut bacteria.

But remember: there is no single “perfect” gut health diet that works for every person.

If certain foods leave you bloated, uncomfortable, or running to the bathroom, simply being told to eat more of them because they are considered “healthy” may not solve the problem.

That is why we need to look at the individual.

Maybe your next step is looking at the supplements you are taking and asking:

Why am I taking this?

Do I know that I need it?

Has anyone evaluated whether it is appropriate for me?

Could I be spending money on something my body does not actually need?

Small steps create information.

Information creates better decisions.

Better decisions can begin moving you toward better health.

How Does Fiber Affect Gut Health?

Fiber gets talked about constantly when we discuss digestive health, and for good reason.

Fiber-rich foods can support digestion and help feed certain bacteria within the gut microbiome.

Fruits, vegetables, whole grains, beans, lentils, legumes, nuts, and other plant foods can all provide different types of fiber and nutrients.

But again, more is not automatically better for everyone.

Someone experiencing significant bloating, constipation, diarrhea, IBS, or other digestive problems may respond differently to certain foods and types of fiber.

Instead of following a blanket recommendation because you saw it online, pay attention to how your body responds.

Variety matters.

Balance matters.

And your individual symptoms matter.

Are Probiotics Good for Gut Health?

Probiotics are another area where I see people spending a lot of money without necessarily understanding what they are taking or why they are taking it.

Yes, probiotics can play a role in gut health.

But buying the supplement with the biggest number on the bottle does not automatically mean you are doing something better for your microbiome.

Remember:

Test, don’t guess.

Your gut contains an enormous diversity of bacteria and other microorganisms.

Supporting that environment is not necessarily as simple as adding one probiotic supplement.

Food, fiber, prebiotics, fermented foods, stress, sleep, physical activity, and your overall diet and lifestyle can all be pieces of the conversation.

The goal should not be to take as many supplements as possible.

The goal should be to understand what your body actually needs.

What Are Short-Chain Fatty Acids, and Why Should You Care?

Another listener, Sarah, had undergone stool testing and was told that her short-chain fatty acids were low.

Her immediate reaction was understandable:

What does that even mean?

She was eating healthy fats, so why would her short-chain fatty acids be low?

This is exactly why receiving test results without understanding them can be so frustrating.

Short-chain fatty acids are connected to the activity occurring inside the gut and can provide useful information when we are evaluating digestive health.

Sarah was also dealing with fatigue, brain fog, and inflammation.

That raises another important question:

Are you eating nutritious foods but still not absorbing what your body needs?

You can eat beautifully.

You can eat plenty of fruits and vegetables.

You can buy organic food.

You can take vitamins.

You can spend a fortune at the health-food store.

But if digestion and absorption are compromised, we may still need to investigate what is happening.

Micronutrients matter.

Fat-soluble vitamins matter.

Digestion matters.

Absorption matters.

Instead of assuming you simply need another supplement, sometimes we need to understand why your body is struggling in the first place.

What Lifestyle Changes Can Help Improve Gut Health?

Improving gut health is not only about what is on your plate.

Your everyday habits matter too.

Stress, hydration, exercise, sleep, and overall lifestyle can all be part of supporting your digestive health and general wellness.

You do not have to change everything at once.

Drink water consistently throughout the day.

Find ways to move your body that you actually enjoy. Prioritize quality sleep. Pay attention to how stress affects your stomach and digestion. Build meals around a variety of nutrient-rich foods when they are appropriate for you.

These may sound like simple things.

That is the point.

Your health should not require you to chase every new wellness trend.

Sometimes improving your habits one at a time is more realistic and sustainable than trying to completely overhaul your life overnight.

Give Your Gut an Oil Change

Throughout this episode, I kept coming back to the idea of giving your gut an oil change.

Think about it.

You would not drive your car for 150,000 miles without ever changing the oil and then act surprised when something starts sputtering.

Your body also needs attention.

Sometimes we need to remove things that are contributing to problems.

Sometimes we need to reduce certain exposures or foods.

Sometimes we need to support the gut microbiome.

Sometimes we need to repair.

Sometimes we need to rebalance.

And eventually, the goal should be maintenance.

I do not want you taking 40 supplements forever.

I do not want you terrified of food.

I do not want every meal to become a chemistry experiment.

I want you to understand your body well enough that taking care of yourself becomes simpler, not more complicated.

When Should You Talk to a Healthcare Professional About Gut Health?

Perhaps you have already tried everything.

Or at least it feels that way.

You have changed your diet.

You have taken medications.

You have bought probiotics and supplements.

You have tried adding or removing different foods.

You have been scoped every which way you can be scoped.

And yet you still have symptoms.

If you are experiencing persistent digestive problems, significant pain, ongoing constipation or diarrhea, unexplained changes in your digestive system, or symptoms that are interfering with your daily life, it is worth discussing them with a qualified healthcare professional.

Before you decide, “I guess I just have to live like this,” ask yourself one more question:

Have we actually investigated the root of the problem, or have we only been managing the symptoms?

Sometimes there is another question to ask.

Another marker to investigate.

Another piece of your history that deserves attention.

Another connection that has not been considered.

And sometimes your first step is simply sitting down with someone who will listen to the entire story.

Improving Your Gut Health Does Not Have to Feel Like Guesswork

Liz was struggling with IBS.

Nancy was trying to understand the relationship between her mental health, stress, and digestive health.

Sarah had test results she did not understand and symptoms that continued despite trying to eat well.

Different people.

Different symptoms.

But the same underlying question:

What do I do next?

You do not have to solve everything today.

You do not have to completely overhaul your diet tomorrow.

You do not need to suddenly eat every food someone online claims is good for your gut.

And you certainly do not need to buy every probiotic or supplement you see.

If you want to know how to improve gut health, start by becoming curious about your own health.

Ask questions.

Request your results.

Learn what those results mean.

Pay attention to patterns.

Look at your food, stress, sleep, hydration, exercise, and other lifestyle habits.

And look for qualified professionals who are willing to investigate instead of simply telling you to live with symptoms that are interfering with your life.

Most importantly, stop assuming that feeling terrible has to become your new normal.

Your body is giving you information.

Maybe it is time to listen.

And maybe your gut is simply asking for an oil change.

If you are tired of guessing and want to better understand what may be happening with your digestion, gut microbiome, food sensitivities, micronutrients, or overall health, visit HarmonyWithFood.com for free resources or to schedule a complimentary session.

Because the first step toward taking control of your health is often the simplest one:

Become your own healthcare advocate.