43: Hidden "Healthy" Foods That May Be Sabotaging Your Hashimoto’s Healing | Dr. Izabella Wentz

In this episode of Thyroid Pharmacist Healing Conversations, Dr. Izabella Wentz explores the surprising foods that may look healthy on the outside — but secretly sabotage thyroid healing for those with Hashimoto’s. From high-iodine “superfoods” to seemingly innocent whey protein and gluten-free treats, she breaks down what makes these foods problematic and what to eat instead.

What you’ll learn in this episode:

• The truth about iodine and Hashimoto’s. While iodine is essential for thyroid hormone production, excessive intake — especially from kelp, spirulina, and seaweed snacks — can trigger autoimmune flares. I’ve seen clients go from mildly symptomatic to completely bedridden after unknowingly overdoing iodine!

• Which protein powders are the best options for those with Hashimoto’s. Up to 80% of people with Hashimoto’s react to dairy, and whey is a major culprit. If you’ve been loading up on whey smoothies and are still dealing with bloating, skin issues, or joint pain, you may want to reconsider your protein powder.

• Even “healthier” grain products can still be harmful. Einkorn, sourdough, and sprouted wheat may be easier to digest for some — but for people with Hashimoto’s, they can still contribute to leaky gut and molecular mimicry. A survey I conducted years ago found that about 88% of my thyroid community feels better going gluten-free.

• Why soy can be sneaky and disruptive. Soy products can interfere with thyroid hormone absorption and increase antibodies. Even fermented versions like miso may cause issues in sensitive individuals. For many clients, removing soy dramatically reduces anxiety and brain fog.

• Gluten-free junk food is still junk. Yes, it’s free of gluten, but it’s often high in sugar, low in protein, and filled with inflammatory ingredients. Blood sugar imbalances from gluten-free cookies, pizza, and crackers can make thyroid symptoms worse, not better.

• Personalization is everything. Just because a food is labeled as a “superfood” doesn’t mean it’s super for your thyroid. From sushi to smoothies, what supports one person’s wellness could hinder someone else’s healing journey. Bioindividuality matters. 

  
  

Tune in to learn how the “healthy” foods you might be eating could be making your symptoms worse! Plus, you’ll discover plenty of realistic swaps so you can eat to nourish your thyroid, not aggravate it.

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For the full list of resources and products mentioned in this episode, and to get the full episode transcript, see complete show notes here: https://thyroidpharmacist.com/articles/podcast/