Hashimoto’s May Be Your Body’s Warning Light: More Than Just a Low Thyroid Problem

Key Takeaways

• Hashimoto's is an autoimmune condition, not simply a low thyroid problem.
• The thyroid may act as an early warning system for a bigger biological fire.
• Oxidative stress, gut health, metabolism, nutrients, genetics and environmental exposures can all add logs.
• A complete evaluation may look beyond TSH to nutrients, inflammation, insulin and gut health.
• The approach is to remove logs and support the body's antioxidant systems.

Why this matters now

Hashimoto's may be the first sign that the pile is getting too large.

HASHIMOTO'S MAY BE YOUR BODY'S WARNING LIGHT , and How to Address It

It Is More Than Just a Low Thyroid Problem

By Dr. Greg Fors, Board-certified Chiropractic Neurologist
Clinic Director, Pain and Brain Healing Center
Chief Science Officer, Biospec Nutritionals

If you have Hashimoto's thyroid disease, you may have been told something like this:

"Your thyroid is slowing down. Take thyroid hormone and we'll watch your TSH."

Thyroid hormone can be very important. If your thyroid is no longer making enough hormone, replacing it may be necessary.

But I believe there is a much bigger question we should be asking:

Why is your immune system attacking your thyroid in the first place?

Hashimoto's is not simply a T4 deficiency. It is an autoimmune disease. Your immune system has begun reacting against your own thyroid tissue.

That should get our attention. And it may be telling us something important about what is happening throughout your body.

YOUR THYROID MAY BE THE CANARY IN THE COAL MINE

Years ago, coal miners carried canaries into mines. Why?

Because the small bird could become sick from poisonous gases before the miners knew they were in danger. The canary was an early warning system. I believe the thyroid may sometimes act the same way.

Hashimoto's may be telling us:

"Something in this person's biological environment is not healthy." That does not mean there is one cause. Usually there isn't.

Chronic disease rarely works that way. Instead, imagine your health as a wood heating stove. Each health issue adds one log.

Poor diet adds another.

Insulin resistance adds another.

Poor sleep adds another.

Gut problems add another.

Nutrient shortages add another.

Chemical exposure adds another.

Genetics may determine how easily that fire starts.

At some point:

There are too many logs on the fire. That is how I want patients to understand Hashimoto's.

YOUR THYROID ALREADY LIVES BESIDE A FIRE

The thyroid is a very unusual organ. To make thyroid hormone, your thyroid must actually produce hydrogen peroxide. You may know hydrogen peroxide as the bubbling liquid people once poured on cuts. It is a powerful oxidizing chemical.

Your thyroid uses small, controlled amounts of it as part of the process that makes the thyroid hormone. So the thyroid is almost like a tiny factory containing an oxidative furnace.

Your body has antioxidant systems that keep that furnace under control.

Glutathione made from three amino acids, is a major one. Selenium-dependent antioxidant enzymes are another. Vitamin C, zinc and many other nutrients help support the larger antioxidant network. All nutrients you need in your diet.

When everything is working properly, the system is beautifully balanced. The thyroid makes the oxidative chemicals it needs. The antioxidant system cleans up the excess.

But trouble may begin when the balance changes.

WHAT IS OXIDATIVE STRESS?

You have probably heard of free radicals and antioxidants. Here is the easy way to understand them.

Think of oxidative stress as a kind of cellular rust. Your body naturally produces free radicals every day. That is normal.

Your body also makes antioxidants to control them. That is normal too. The problem begins when:

Free-radical production becomes greater than your ability to control it.

That is oxidative stress. Here is a key as to why Hashimoto's is becoming so prevalent. Research in people with Hashimoto's repeatedly shows signs of greater oxidative stress and changes in antioxidant defenses compared with healthy people.[1,2]

This matters because too much oxidative stress can damage:

• Cell membranes
• Proteins
• Mitochondria
• DNA
• Thyroid cells

And damaged tissue creates inflammation. Inflammation creates even more free radicals. Now the fire begins feeding itself!

YOUR GENES HELP DETERMINE HOW BIG YOUR FIRE EXTINGUISHERS ARE

We are not all born with the same ability to handle oxidative stress. Some people have very strong antioxidant and detoxification systems. Others do not.

Genetic differences can affect enzymes involved in:

• Glutathione
• Detoxification
• Inflammation
• Methylation
• Antioxidant protection
• Immune regulation

This helps explain something we see all the time:

Two people can live very similar lives and have very different health outcomes.

One person can tolerate years of poor food, stress and environmental exposure. Another person begins developing problems much sooner. That does not mean the second person is weak.

It means their biological reserve may be different. Their Genetics loaded the gun. Their environment, diet and lifestyle can help determine how often the trigger gets pulled.

THEN WE ADD THE STANDARD AMERICAN DIET

Now imagine someone who already has less antioxidant reserve. Then feed that person the Standard American diet or SAD.

Sugar.

Soda.

Bread.

Pasta.

Crackers.

Cookies.

Pastries.

Breakfast cereal.

Fast food.

Ultra-processed snacks.

Very few vegetables.

Very few nuts and seeds.

Not enough quality protein.

Not enough nutrient-dense food.

This creates a terrible combination. We increase the fire while taking away the fire extinguishers.

A poor diet can push glucose and insulin higher. Over time, that can lead to insulin resistance. Insulin resistance is about much more than diabetes.

It is linked with inflammation, abnormal fat storage, mitochondrial stress and changes in how the body handles energy.

Thyroid disorders and metabolic problems also commonly overlap, and current research increasingly recognizes important connections among thyroid function, obesity, insulin resistance and diabetes.[3]

That is why I do not want to look only at your thyroid. I want to know what your metabolism is doing too.

YOUR GUT MAY ALSO BE ADDING LOGS TO THE FIRE

Your intestinal tract contains trillions of microorganisms. That is your gut microbiome. A healthy gut microbiome helps regulate digestion, nutrients, the immune system and the intestinal barrier.

But when the gut becomes unhealthy, the balance of bacteria can change. We call that dysbiosis.

The intestinal barrier can also become more permeable. That means substances from inside the intestine can interact with the immune system more than they should. The result can be greater immune activation and inflammation.

Here is another key to the increased in Hashimoto's disease. A 2024 systematic review found evidence linking Hashimoto's with changes in the gut microbiome and intestinal permeability.[4]

Think about the chain:

Poor gut health
↓
More immune activation
↓
More inflammation
↓
More oxidative stress
↓
More logs on the fire

This is why constipation, diarrhea, bloating, reflux and food reactions should not always be brushed aside as completely separate problems. The gut and immune system talk to each other all day long.

THEN THERE IS THE WORLD WE LIVE IN

Our bodies also face something our ancestors never faced at today's level: A huge mixture of man-made chemicals.

We are exposed through our:

• Food
• Water
• Air
• Plastics
• Household products
• Pesticides
• Herbicide
• Personal-care products

We now even find microscopic plastic particles called microplastics and nanoplastics throughout our environment. And now in our thyroid gland.

Recent human and animal studies reveal that microplastics and nanoplastics MNPs can accumulate in the thyroid gland and potentially trigger inflammation, oxidative stress, and endocrine disruption.

Why does this matter? Because many environmental exposures can increase oxidative stress, irritate mitochondria and turn on inflammatory pathways.

Recent research on microplastics, for example, describes free-radical production, mitochondrial dysfunction, reduced antioxidant defenses and inflammation as important ways these particles may harm human biology.[5]

Again, think about the fire. Your body does not have separate buckets labeled:

"poor diet free radicals"
"pollution free radicals"
"gut inflammation free radicals"
"thyroid free radicals."

It must deal with the total load.

Another log.

Another log.

Another log.

Eventually, your biology may run out of room to compensate.

NUTRIENTS MATTER TOO

Your thyroid needs nutrients to work properly and protect itself. Among the important ones are:

• Selenium
• Iron
• Zinc
• Magnesium
• Protein
• Iodine
• Vitamin D

and many others.

Selenium is especially interesting.

Your thyroid contains a large amount of selenium because selenium-dependent enzymes help control oxidative stress and help manage thyroid hormone.

A major 2024 review of 35 clinical studies found selenium supplementation lowered thyroid peroxidase antibodies and an oxidative-stress marker called malondialdehyde in people with Hashimoto's. Researchers also found a modest improvement in TSH in certain patients who were not already taking thyroid hormone.[6]

That does not mean everyone with Hashimoto's should blindly start taking large doses of selenium. Too much can be harmful!

The lesson is bigger:

Your thyroid needs the right nutritional tools to defend itself.

That is why testing and individual treatment matter.

HASHIMOTO'S MAY BE MORE THAN A THYROID PROBLEM

This is the point I really want you to understand. If you have Hashimoto's, the thyroid may not be the only thing we should be watching.

Hashimoto's may be a sign that your body has been dealing with a larger combination of:

• Oxidative stress
• Chronic inflammation
• Metabolic dysfunction
• Poor gut health
• Nutritional problems
• Environmental burden
• Genetic susceptibility

And these same problems are involved in many of the chronic diseases we worry about later in life.

Diabetes.

Heart disease.

Fatty liver.

Brain decline/Dementias

Chronic pain.

Loss of muscle.

And other inflammatory conditions.

So Hashimoto's should not frighten you. But it should get your attention.

Think of it as the dashboard light coming on in your car. You could put a piece of tape over the warning light. But the smarter choice is to look under the hood.

DO NOT JUST CHECK YOUR TSH

TSH is important. But I believe a good Hashimoto's evaluation should often look deeper. Depending on the patient, I commonly want to understand:

Your thyroid: TSH, free T4, free T3, thyroid peroxidase antibodies and thyroglobulin antibodies.

Your nutrients: Iron, ferritin, iron saturation, zinc, selenium and vitamin D3.

Your inflammation: Tests such as hs-CRP, SED Rate, CBC can help us understand whether systemic inflammation is elevated.

Your metabolism: I want to know your fasting glucose. But glucose alone is not enough. I also want to know your fasting insulin. Why?

Because insulin can become abnormal years before blood sugar finally becomes diabetic.

I also look at hemoglobin A1c, triglycerides and the rest of the lipid panel.

Your gut: If symptoms point toward gut problems, we investigate them rather than pretending they have nothing to do with the rest of the body.

YOU ARE NOT POWERLESS

This is the most important part of this article. If Hashimoto's is your body's warning light, you can listen to the warning. You can start removing logs from the fire.

Remove added sugar.

Remove ultra-processed foods.

Remove refined and ground carbohydrates such as bread, pasta, crackers, pastries, cookies and breakfast cereals.

Build meals around quality protein and real food.

Eat plenty of non-starchy vegetables.

Use nuts and seeds.

Exercise.

Build muscle.

Improve your sleep.

Correct insulin resistance.

Find and correct nutrient deficiencies.

Take gut problems seriously.

Stop smoking.

Reduce unnecessary pesticide, plastic and chemical exposure where you realistically can.

Support your mitochondria and antioxidant systems.

And treat thyroid hormone deficiency when hormone replacement is needed.

There is rarely one magic treatment. I think of good functional medicine as using many small tuning hammers instead of one giant sledgehammer of conventional medicine.

Nutrition is one tuning hammer.

Exercise is another.

Sleep is another.

Gut treatment is another.

Correcting insulin resistance is another.

Specific targeted supplements based on history, exam and laboratory findings can be vital to recovery!

Of course, Thyroid medication can be another when it is needed.

The right combination depends on you.

THE QUESTION I WANT YOU TO START ASKING

If you have Hashimoto's, do not stop with:

"What is my TSH?"

Ask:

"What is adding logs to my fire?"

Is it your diet?

Your blood sugar?

Your insulin?

Your gut?

Your sleep?

Your nutrient levels?

Your inflammation?

Your environmental exposure?

Your genetics?

Usually, it is not one thing. That is the whole point. Chronic disease usually does not arrive carrying one smoking gun.

It arrives carrying a pile of logs.

Hashimoto's may be the first sign that the pile is getting too large. And that makes Hashimoto's more than a thyroid diagnosis.

It may be an opportunity.

An opportunity to look deeper.

An opportunity to change your diet.

An opportunity to improve your metabolism.

An opportunity to calm inflammation.

An opportunity to improve your gut.

An opportunity to strengthen the systems that protect your cells.

And perhaps most importantly:

An opportunity to change the direction your health is heading before other chronic diseases have a chance to develop.

Do not simply cover the warning light.

Look under the hood.

References

1. Batóg G, et al. The interplay of oxidative stress and immune dysfunction in Hashimoto's thyroiditis and polycystic ovary syndrome: a comprehensive review. Front Immunol. 2023. (https://pmc.ncbi.nlm.nih.gov/articles/PMC10426741/)
2. Metabolic Characteristics of Hashimoto's Thyroiditis Patients and the Role of Microelements and Diet in Disease Management: An Overview. Nutrients. 2022. (https://pmc.ncbi.nlm.nih.gov/articles/PMC9223845/)
3. Razvi S. The public health burden of diabetes mellitus and thyroid disease: twin epidemics. Nature Reviews Endocrinology. 2026. (https://www.nature.com/articles/s41574-025-01226-5)
4. Influence of the increase in intestinal permeability and microbiota change in the development of Hashimoto's thyroiditis: Systematic review. Endocrine and Metabolic Science. 2024. (https://www.sciencedirect.com/science/article/pii/S2666396124000396)
5. Kovacs K, et al. Microplastics, Endocrine Disruptors, and Oxidative Stress: Mechanisms and Health Implications. 2026. (https://pmc.ncbi.nlm.nih.gov/articles/PMC12785609/)
6. Huwiler VV, et al. Selenium Supplementation in Patients with Hashimoto Thyroiditis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Thyroid. 2024;34:295–313. (https://pmc.ncbi.nlm.nih.gov/articles/PMC10951571/)

Related Pain and Brain Healing Center Resources

• Why consider functional medicine?
• Functional medicine principles
• Healthy diet resources
• Healthy environment resources
• Gluten-free foods resource
• Pain and Brain Healing Center services

About Dr. Greg Fors

Dr. Greg Fors is Clinic Director of Pain and Brain Healing Center and Chief Science Officer of Biospec Nutritionals.

Ready to Look Under the Hood?

Call (763) 862-7100 or visit the free consultation/intake page to explore a root-cause evaluation.

Educational only. This is not personal medical advice.

This article is for educational purposes only and is not a substitute for individualized medical advice, diagnosis, or treatment. Do not change medications or begin a new treatment program without speaking with a qualified healthcare professional.