Is the parasite Blastocystis hominis the hidden cause of your gut and thyroid issues? That’s what you’re going to learn today as I share the story of a patient who resolved gas, bloating, fatigue, and improved her thyroid function after eliminating her Blastocystis parasite while following an anti-inflammatory diet and the proper supplements.
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My name is Dr. Tom Rofrano from the Natural Medicine Clinic in Palm Beach Gardens, Florida, and author of the FreeDiet®. I’ve been blessed to have seen over 100,000 patient visits over the last 39 years, many involving thyroid issues—and this patient was one of them.
Patient Background: Gut Symptoms, Fatigue & Hashimoto’s
A 43-year-old woman came in with:
- Gas and bloating
- Heartburn
- Fatigue
- Dizziness
- Itchy skin
- Cold hands and feet
- Insomnia
- Hair loss
She had Hashimoto’s autoimmune thyroid disease with thyroid nodules.
Comprehensive lab testing showed:
- High TSH (underactive thyroid) despite medication
- Below-optimal ferritin
But the deeper answers came from functional testing.
Functional Testing Revealed the Real Root Causes
- Parasites
She tested positive for:
- Blastocystis hominis — a protozoan parasite linked to gut symptoms and autoimmune conditions like Hashimoto’s
- Dientamoeba fragilis — another intestinal parasite
- Yeast & Bacterial Overgrowth
She had:
- Candida yeast overgrowth
- H. pylori — a stomach bacteria associated with ulcers and gastric cancer risk
- Leaky Gut & Food Sensitivities
She tested positive for:
- Leaky gut
- Gluten sensitivity
- Multiple food allergies and sensitivities
These can lead to:
- Malabsorption
- Nutrient deficiencies
- Immune dysfunction
- Nutrient Deficiencies
She had low levels of:
- Vitamin C
- Selenium
- Vitamin D
- Folate
- Other nutrients
Selenium and vitamin D deficiencies are commonly associated with Hashimoto’s.
- Hormonal Imbalance
She had:
- Adrenal dysfunction
- Low DHEA
- High cortisol
- Low testosterone
These imbalances can worsen fatigue, sleep issues, and thyroid symptoms.
How These Gut Issues Affect the Thyroid
Parasites, yeast, and bacterial overgrowth can:
- Increase inflammation
- Trigger autoimmune reactions
- Damage the gut lining
- Cause malabsorption
- Disrupt hormone balance
All of these can worsen Hashimoto’s and thyroid dysfunction.
Her Results After 6 Weeks
After starting the FreeDiet® and targeted supplements, she returned at 6 weeks with major improvements:
- Less gas and bloating
- No more heartburn
- More energy
- Better sleep
- Less dizziness
- Itchy skin improved
- Cold hands and feet improved
- Dropped 7 lbs
Her TSH improved 50%, reaching optimal levels—without changing her thyroid medication.
Her Results After 4 Months
At her 4-month follow-up:
- TSH improved another 50%
- Thyroid levels remained optimal
- A repeat stool test showed:
- Blastocystis hominis — gone
- Dientamoeba fragilis — gone
- Candida — gone
- H. pylori — gone
She was feeling dramatically better and her thyroid function continued to improve.
How She Healed: The FreeDiet®
The diet she followed is called the FreeDiet®, which I developed years ago while healing my own Hashimoto’s, rheumatoid arthritis, IBS, fatigue, skin issues, and other chronic health problems.
What the FreeDiet® Removes
It’s free of:
- Gluten
- Grains
- Sugar
- Yeast
- Dairy
- Eggs
- Soy
- Legumes
- Nightshades
- Processed foods
These are the foods most commonly responsible for inflammation, gut issues, thyroid dysfunction, and chronic health problems.
I’ll include a link below to the FreeDiet® Phase 1 food chart.
Supplements That Supported Her Recovery
She took the Functional Five:
- Multivitamin
- Vitamin D with K
- Magnesium
- Fish oil
- Probiotic
Plus targeted gut-support formulas:
- Blasto Pack — for Blastocystis
- GastroBlast — for H. pylori
- Iron
- Vitamin C
- Selenium
- Other nutrients she was deficient in
- Adrenal support
- Thyroid support
The Bottom Line: Parasites Can Affect Your Gut and Thyroid
With the right testing, the right diet, and the right supplements, she was able to:
- Eliminate parasites
- Heal her gut
- Improve thyroid function
- Reduce inflammation
- Restore energy
- Improve sleep
- Reduce symptoms across the board
If you want to clear up gut, thyroid, or other chronic health issues, getting the proper testing is essential. When you uncover the root causes and are provided the right solutions, I believe almost anyone can get better.
Go here if you would like a free copy of the FreeDiet® phase 1 food chart.
