CASE: Should I take iodine if I have Hashimoto’s?
"I’ve had Hashimoto’s for several years and take Letrox. I recently took PureNordic’s vitamin and mineral analysis, which showed an iodine deficiency of 33%. I was advised to supplement with iodine, but I’m worried. There’s so much information online saying that iodine is harmful if you have Hashimoto’s. Is it safe?"
– Renate, patient from Norway
Our answer:
Thank you for trusting us, Renate. This is a very important and common question we receive. Iodine and Hashimoto’s is, in fact, a controversial topic. As a Clinical Nutritionist and health protocol specialist at PureNordic, I’d like to explain step by step how our holistic approach works for patients with Hashimoto’s.
1. Iodine and Hashimoto’s – Is it really dangerous?
High-dose iodine (e.g., from so-called "iodine protocols") is not safe for autoimmune conditions, and we never use such approaches. These megadoses can trigger or worsen autoimmune reactions.
At PureNordic, we base iodine supplementation exclusively on lab-confirmed deficiency and the individual’s overall clinical picture. In your case—with a 33% deficiency—we recommend starting with one capsule daily, which meets your daily requirement. If well tolerated, this can be increased to 2–3 capsules. All changes must be made gradually and monitored.
It is also essential to consider the quality and form of iodine. Many commercial supplements contain contaminated or poorly absorbed forms.
Our iodine supplement is:
- Organically sourced from hand-harvested Norwegian seaweed (wild-growing in Arctic waters)
- Combined with adaptogens such as reishi and dandelion root, which support the thyroid and immune system
- Free from synthetic additives and laboratory-tested for purity
Read more here: [PureNordic Iodine Supplement]
Iodine plays a key role in immune modulation—not just in the production of thyroid hormones. Deficiency can lead to much broader health problems.
After the thyroid, iodine is most concentrated in breast tissue and the ovaries. Deficiency may be linked to PCOS, irregular cycles, cysts, reduced fertility, and even fibromyalgia. Every cell in the body has iodine receptors, making iodine essential far beyond the thyroid.
2. Hashimoto’s is not a thyroid disease
Hashimoto’s is an autoimmune condition, not primarily a thyroid problem. The gland becomes the victim, but the root of the problem is an imbalanced immune system.
At PureNordic, we always start by supporting digestion—especially stomach acid, bile flow, and the gut barrier. More than 70% of immune activity is regulated in the gut.
Without good digestion:
- Nutrient absorption is impaired
- Hormone conversion (T4 to T3) is reduced
- Toxins build up and burden the gland
PureNordic Digestive Support is a key supplement for patients with IBS, reflux, bloating, diarrhea/constipation, and autoimmune conditions such as Hashimoto’s. It:
- Improves protein breakdown (amino acids are the building blocks of hormones)
- Supports iron absorption—iron deficiency is common with low thyroid function and often persists despite supplementation
- Stimulates bile production, which is important for:
* Activation of thyroid hormones
* Absorption of vitamin D3
* Detoxification of heavy metals
Read more here: [PureNordic Digestive Support]
3. Iodine as part of a comprehensive PureNordic protocol
We know that many factors affect thyroid function. That’s why we develop individual protocols based on tests and symptoms, combining several targeted supplements.
We typically support:
- Hormone production (iodine + amino acids)
- Conversion of T4 to T3 (requires the liver, kidneys, stomach, D3, and iron)
- Hormone receptor sensitivity
We never use iodine alone. We combine it with:
- Electrolytes and magnesium – for detoxification
- Silicon – for cellular integrity and cleansing
- Mitochondrial formula – omega-3, selenium, and ATP support
- Digestive support – for absorption and activation
4. Impact on medication dosage
Synthetic hormones (Letrox, Euthyrox) are inactive precursors. They must be converted to T3 to work—a process that requires good digestion, liver and kidney function, and micronutrients.
As digestion improves and deficiencies are corrected, your dose may become too high, causing symptoms of overdose such as heart palpitations, restlessness, and sleep problems.
That’s why we recommend monitoring TSH every 2–4 weeks after starting, and always adjusting medication in consultation with your doctor.
5. Diet and lifestyle
In addition to supplements, we recommend:
- An anti-inflammatory diet (gluten- and dairy-free, minimally processed, rich in healthy fats and whole foods)
- Good sleep and a regular sleep schedule
- Daily exposure to daylight
- Reduced stress and screen time
- Time for rest and recovery
The most important thing is to listen to your body and make changes gradually and as part of a comprehensive approach—never in isolation. We always recommend discussing this with your doctor and monitoring things closely.
We also recommend a comprehensive blood test panel and a thyroid ultrasound to monitor changes and tailor the protocol precisely.
Key points:
- Iodine can be safe and beneficial for Hashimoto’s—when used correctly and individually
- You cannot treat Hashimoto’s with iodine alone—it requires a comprehensive strategy
- Every protocol must be personalized and based on symptoms and lab data
Paulina Borkowska
PureNordic.life
