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12 Best Foods for an Underactive Thyroid

Discover the 12 best foods to support thyroid health, particularly for those with an underactive thyroid. Nourish your body naturally.

An underactive thyroid, or hypothyroidism, can lead to various health issues, including fatigue, weight gain, and mood changes. Proper nutrition plays a crucial role in managing this condition and supporting thyroid function.

Incorporating specific foods can help improve your thyroid health. This guide lists the 12 best foods, highlighting their benefits and how they contribute to thyroid function.

Part of our Thyroid Health hub.

1
Best overall

Seaweed

★★★★★ 4.7

Rich in iodine, seaweed is essential for thyroid hormone production. It helps maintain optimal thyroid function and supports overall metabolic health.

✔ High in iodine
✔ Supports metabolic health
− May contain high levels of sodium
1-2 servings per week Check price on Amazon →
2
Best protein source

Fatty Fish

★★★★★ 4.6

Fatty fish like salmon and mackerel provide omega-3 fatty acids, which can reduce inflammation and support thyroid hormone production.

✔ Rich in omega-3s
✔ Supports heart health
− May contain environmental toxins
2-3 servings per week Check price on Amazon →
3
Best versatile food

Eggs

★★★★★ 4.5

Eggs are a great source of protein and selenium, both vital for thyroid health. They also provide essential nutrients like vitamin D.

✔ High in protein
✔ Rich in selenium
− Cholesterol content may concern some
Up to 7 per week Check price on Amazon →
4
Best for vitamins

Leafy Greens

★★★★☆ 4.4

Leafy greens like spinach and kale are packed with vitamins and minerals that support overall health, including thyroid function.

✔ High in nutrients
✔ Supports overall health
− May interfere with iodine absorption in large amounts
Daily servings recommended Check price on Amazon →
5
Best healthy fats

Nuts and Seeds

★★★★★ 4.6

Nuts and seeds, especially Brazil nuts, are rich in selenium and healthy fats, supporting thyroid function and hormone balance.

✔ Rich in healthy fats
✔ Contains selenium
− Caloric density may lead to overconsumption
A small handful daily Check price on Amazon →
6
Best antioxidant source

Berries

★★★★★ 4.5

Berries are high in antioxidants and vitamins that can help reduce inflammation and support thyroid health.

✔ Low in calories
✔ High in antioxidants
− Seasonal availability may vary
7
Best complex carb

Sweet Potatoes

★★★★☆ 4.4

Sweet potatoes are a great source of complex carbohydrates and beta-carotene, which can support thyroid function and energy levels.

✔ Rich in fiber
✔ Provides sustained energy
− High in carbohydrates
2-3 servings per week Check price on Amazon →
8
Best healthy oil

Coconut Oil

★★★★★ 4.5

Coconut oil contains medium-chain triglycerides that can enhance metabolism and provide energy, supporting thyroid health.

✔ Supports metabolism
✔ Versatile for cooking
− High in saturated fat
1-2 tablespoons daily Check price on Amazon →
9
Best fiber source

Legumes

★★★★☆ 4.4

Legumes are rich in fiber and protein, which can help stabilize blood sugar levels and support overall thyroid health.

✔ High in fiber
✔ Good source of protein
− May cause digestive issues for some
2-3 servings per week Check price on Amazon →
10
Best detox food

Cruciferous Vegetables

★★★★☆ 4.3

Cruciferous vegetables like broccoli and cauliflower contain compounds that can support detoxification and overall health.

✔ Rich in vitamins
✔ Supports detoxification
− May interfere with thyroid function in excess
2-3 servings per week, cooked Check price on Amazon →
11
Best gluten-free grain

Quinoa

★★★★☆ 4.4

Quinoa is a gluten-free grain that provides essential amino acids and nutrients, supporting thyroid function and overall health.

✔ Complete protein source
✔ High in fiber
− Can be high in oxalates
2-3 servings per week Check price on Amazon →
12
Best snack

Pumpkin Seeds

★★★★★ 4.5

Pumpkin seeds are an excellent source of magnesium and zinc, which are important for thyroid hormone production and overall health.

✔ Rich in minerals
✔ Easy to incorporate into meals
− Caloric density may lead to overconsumption
A small handful daily Check price on Amazon →

Key takeaways

  • A balanced diet can support thyroid health.
  • Focus on iodine, selenium, and anti-inflammatory foods.
  • Consult a healthcare professional for personalized dietary advice.

Prices and availability are accurate as of publication. As an Amazon Associate, HealthyCrispy earns from qualifying purchases. This content is educational and not medical advice.