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Thyroid Function & Metabolism

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Diet Plan for Thyroid Function & Metabolism

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Foods to Eat (Support Thyroid Function)

1. Iodine  and Selenium Rich Foods: These support thyroid hormone production and T4 → T3 conversion.

  • Seaweed (nori, wakame, dulse)

  • Brazil nuts (1–2 per day)

  • Pasture raised eggs

  • Wild caught fish (salmon, sardines, cod)


2. Zinc  and Iron Rich Proteins: Critical for hormone synthesis and energy.

  • Grass fed beef

  • Turkey, chicken

  • Lentils, chickpeas

  • Pumpkin seeds


3. Healthy Fats for Hormone Signaling: Support cell membranes and reduce inflammation.

  • Avocado

  • Olive oil

  • Coconut oil

  • Nuts and seeds


4. Cruciferous Vegetables (Cooked): Support detox pathways that clear hormone metabolites.

  • Broccoli

  • Cauliflower

  • Kale

  • Brussels sprouts (Cooking reduces goitrogens and makes them thyroid friendly.)


5. Antioxidant Rich Fruits & Veggies: Reduce oxidative stress that worsens thyroid symptoms.

  • Berries

  • Pomegranate

  • Spinach

  • Carrots

  • Beets


6. Slow Burn Carbs for Stable Energy: Support adrenal thyroid balance.

  • Sweet potatoes

  • Quinoa

  • Oats

  • Brown rice


7. Gut Supportive Foods: Because 20% of T4 → T3 conversion happens in the gut.

  • Bone broth

  • Fermented foods (sauerkraut, kimchi, kefir)

  • High fiber foods (chia, flax, artichokes)

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Foods to Avoid (Worsen Thyroid Symptoms)

1. Gluten (for many with thyroid issues): Especially important for Hashimoto’s — gluten can trigger immune flares.


2. Conventional Dairy: Can worsen inflammation, acne, and bloating.


3. Refined Sugar & High Glycemic Foods: Destabilize blood sugar and worsen fatigue.

  • Candy

  • Pastries

  • Sugary drinks

  • White bread


4. Industrial Seed Oils: Increase inflammation and slow hormone signaling.

  • Soybean oil

  • Corn oil

  • Canola oil

  • Vegetable oil blends


5. Ultra Processed Foods: Burden detox pathways and worsen metabolic slowdown.

  • Fast food

  • Packaged snacks

  • Frozen meals


6. Excess Alcohol: Slows liver detox — which is essential for hormone conversion.


7. Too Much Caffeine: Can worsen cortisol dysregulation and thyroid suppression. (Moderation is key — especially for “Wired Sleeper” types.)
 

Disclaimer: The information on this website is provided for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. These statements have not been evaluated by the Food and Drug Administration. Our services and the information provided are not intended to diagnose, treat, cure, or prevent any disease. References to specific functional medicine markers or supportive therapies represent a clinical methodology and are not a guarantee of specific outcomes. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before beginning any new health or therapy program.
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