19 Foods to Avoid If You Have Hypothyroidism or Thyroid Problems

Bacon, sausages, and hot dogs often contain nitrates and preservatives that may worsen thyroid inflammation.

9. Alcohol

Alcohol affects thyroid hormone levels and may interfere with proper liver function, where thyroid hormones are activated.

10. Artificial Sweeteners

Aspartame and sucralose may disrupt gut health, which is closely linked to thyroid function.

11. Refined Flour Products

White bread, pastries, and pasta can spike blood sugar levels and promote weight gain, making hypothyroid symptoms worse.

12. Excess Salt (Non-Iodized)

Too much sodium without iodine can throw off thyroid hormone balance. Stick to iodized salt in moderation.

13. Cruciferous Juices (Raw Kale Smoothies)

Raw kale and spinach juices are trendy but may block iodine absorption, negatively impacting the thyroid.

14. Packaged Snack Foods

Chips, crackers, and cookies contain unhealthy oils and preservatives that can worsen inflammation.

15. Fast Food Burgers and Fries

Loaded with unhealthy fats, salt, and additives, fast food makes weight management harder for people with thyroid problems.

16. Dairy (for Sensitive Individuals)

Some people with thyroid disorders may struggle with lactose or dairy proteins, which can trigger inflammation.

17. Red Meat (Excess Consumption)

Too much red meat can increase inflammation and strain metabolism. Choose lean cuts if you include it in your diet.

18. Carbonated Soft Drinks

Sodas contain sugar, caffeine, and chemicals that can disrupt digestion and thyroid hormone absorption.

19. Highly Processed Oils

Vegetable oils like soybean, corn, and canola may increase inflammation and imbalance omega-6 to omega-3 ratios.


Healthy Alternatives for Thyroid Support

Instead of the foods above, focus on:

  • Fresh fruits and vegetables (cooked cruciferous in moderation)

  • Lean proteins like fish, chicken, and legumes

  • Whole grains (gluten-free if needed)

  • Nuts and seeds (selenium-rich Brazil nuts are great for thyroid health)

  • Adequate hydration and herbal teas


Final Thoughts

If you have hypothyroidism or thyroid problems, diet can make a major impact on how you feel every day. By avoiding these 19 foods and choosing healthier alternatives, you’ll support better energy, balanced hormones, and improved metabolism. Always consult your doctor or nutritionist before making major dietary changes, especially if you take thyroid medication.