Can kale slow down thyroid production

Yes, consuming excessive raw kale can potentially slow down thyroid production. Kale, along with other cruciferous vegetables like broccoli and bok choy, contains goitrogens. These compounds can interfere with thyroid function, particularly when consumed in large amounts and in raw form. Dr. Mark Hyman warns against juicing and consuming large quantities of raw kale as it can block thyroid function and potentially lead to hypothyroidism. He shares an example of a woman who induced a hypothyroid coma by eating two pounds of raw bok choy daily 1 2.

Cooking cruciferous vegetables can deactivate some of these goitrogenic compounds, making them less likely to interfere with thyroid function. Therefore, while kale is nutritious, it’s advisable to consume it in moderation and preferably cooked if you are concerned about thyroid health.

Dr. Mark Hyman provides comprehensive guidance on managing thyroid health using a functional medicine approach. Here are key recommendations from him:

Symptoms and Diagnosis:

1. Symptoms of Low Thyroid Function:

   • Fatigue, sluggishness
   • Brittle nails, dry skin, hair loss
   • Cold intolerance
   • Depression, constipation
   • Weight gain, high cholesterol
   • Irregular periods, low libido, cognitive issues 1.

2. Proper Testing:

   • Beyond TSH, testing should include free T3, free T4, and thyroid antibodies.
   • Many individuals with "normal" TSH may have symptoms and high antibodies indicative of thyroid issues 2 3.
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Dietary Considerations:

1. Eliminate Inflammatory Foods:
   • Avoid processed foods, artificial sweeteners, trans fats, sugary beverages, and alcohol.
   • Cut out gluten, as a gluten-free diet has shown to reduce thyroid antibodies and improve thyroid function 4.
2. Nutrient-Rich Foods:
   • Foods high in selenium (e.g., Brazil nuts), omega-3, zinc, and vitamin D are crucial.
   • Iodine-rich foods like seaweed are beneficial for thyroid function 5 6.

Environmental Factors:

• Avoid exposure to environmental toxins, such as mercury-containing fish (e.g., tuna, swordfish) and pesticides. Use guides like the EWG for low-toxin foods and products 4.

Supplements and Lifestyle:

1. Supplements:

   • Basic multivitamins, omega-3, vitamin D, and adaptogens like rhodiola and ashwagandha can help.
   • If necessary, consider bio-identical thyroid hormone replacements like Armour Thyroid, which includes T3 and T4 7 8.

2. Lifestyle Practices:

   • Incorporate stress-reducing activities like meditation, yoga, and proper sleep.
   • Exercise and proper strength training are vital for glucose control and hormonal balance 7.

Addressing thyroid issues holistically involves proper diagnosis, dietary changes, minimizing toxin exposure, and possibly supplementation, ensuring a comprehensive approach to thyroid health.