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Don’t Miss Out On These Essential Vegan Sources Of Iodine

Vegan Sources of Iodine

As the popularity of plant-based diets continues to grow, concerns about getting enough essential nutrients have become a hot topic. One nutrient that often gets overlooked is iodine, which is essential for thyroid function and overall health.

In this article, we’ll explore why iodine is important, how much you need, and the 7 best vegan sources of iodine to meet your daily requirements.

Short on time? Can’t keep reading? Take a quick look at the 7 best vegan sources of iodine

  1. Sea VegetableSeaweeds
  2. Iodized SaltTable Salt
  3. Fruit PlantsStrawberries, Cranberries, Prunes, Pineapple
  4. Fortified Plant MilksSoya, Almond, Coconut Milks
  5. VegetablesBeans, Potatoes
  6. Leafy GreensSpinach, Watercress
  7. Bread & GrainsAll kinds of Breads & Grains

The purpose of this article is to provide an overview of the importance of iodine in thyroid health and discuss the potential risk of iodine deficiency among vegans and also describe vegan sources of iodine.

What is Iodine?

What is Iodine?

Iodine is an essential mineral that the body can’t produce naturally and needs to take from the diet. According to the National Institutes of Health iodine is naturally present in some foods and salts and is implemented in dietary supplements.

Why is iodine Important for Thyroid Health?

Why is iodine Important for Thyroid Health?

Iodine is an essential nutrient that plays a crucial role in thyroid health. The thyroid gland, which is located in the neck, produces hormones that regulate metabolism and growth.

These hormones contain iodine, and without enough iodine, the thyroid gland cannot produce enough hormones, leading to a condition called hypothyroidism ( lack of thyroid hormone production ).

Iodine Deficiency Symptoms:

Iodine Deficiency Symptoms

Researchers have identified several symptoms that are associated with iodine deficiency, which can impact overall health and development.

Iodine deficiency has been a significant public health concern for centuries. Iodine deficiency is a widespread issue globally and can result in low levels of thyroid hormones leading to hypothyroidism in adults. This condition may also cause an enlarged thyroid known as a goiter.

Insufficient intake of iodine can lead to a range of symptoms, including:

  • Swelling in the neck (goiter)
  • Fatigue and weakness
  • Weight gain
  • Hair loss
  • Dry, flaky skin
  • Brain fog and poor concentration
  • Developmental delays in children

While mild iodine deficiency may not cause noticeable symptoms, severe iodine deficiency can lead to serious health complications, such as intellectual disability, hypothyroidism, and pregnancy-related issues.

Is Iodine Deficiency Common Among Vegans?

In the realm of vegan nutrition, iodine deficiency can be a perplexing and prevalent issue, primarily due to the limited availability of iodine-rich food sources like dairy and seafood.

However, it is worth noting that excessive iodine consumption can lead to potential harm. Therefore, it is crucial to strike a balance between iodine intake and the risk of toxicity.

A balanced vegan diet with adequate iodine intake can prevent iodine deficiency.

Iodine Supplement for Vegans:

Do vegans need iodine supplements? The reality for vegans is that they face an elevated risk of iodine deficiency because their diets are typically low in iodine sources such as seafood, dairy, and eggs.

Vegan Thyroid Supplements
Top 5 Vegan Thyroid Supplements Review

It’s imperative to note that incorporating vegan thyroid supplements into your routine requires due diligence to ensure it contains all the necessary components for optimal effectiveness.

Our recommendation is to opt for a supplement that includes Iodine sourced from either sea salt or kelp, T3, selenium, and B-12. This ensures a well-rounded and efficacious supplement that meets your thyroid needs.

Best Vegan Thyroid Supplements Review

Nonetheless, this risk can be mitigated by consuming iodine-rich foods or supplements. It’s important, however, to exercise caution and consult with a healthcare professional before taking supplements to prevent the burst of adverse health effects associated with excessive iodine intake.

Best 7 Proven Vegan Sources of Iodine:

Vegan Sources of Iodine
Best 7 Proven Vegan Sources of Iodine

In recent years, the vegan diet has become increasingly popular due to its ethical, environmental, and health benefits.

However, one of the challenges faced by individuals following a vegan diet is ensuring they consume enough iodine, an essential mineral vital for proper thyroid function.

While it is commonly found in seafood and dairy products, there are several vegan sources of iodine as well. Here are the 7 Best Proven Vegan Sources of Iodine:

Sea Vegetable

Sea Vegetable

Seaweed is a rich source of iodine for vegans, and dried seaweed like kelp, nori, and dulse contains high levels of iodine.

Sea vegetables like nori are rich sources of iodine, with 10 grams of dried nori containing well above the recommended daily allowance of iodine.

However, it’s important to monitor portion sizes to avoid consuming excessive amounts of iodine, which can lead to health problems.

Iodized Salt

Iodized Salt

Iodized salt helped eliminate iodine deficiencies. A small amount of iodized salt contains a significant amount of iodine, making it an effective means of meeting daily iodine needs.

  • Iodized salt is table salt mixed with small amounts of iodine salts.
  • Approximately 1/4 teaspoon (1.5 grams) of iodized salt contains 76 mcg of iodine.
  • A little iodized salt goes a long way in meeting daily iodine needs.
  • Iodized salt can be an easy and convenient way to ensure adequate iodine intake.

Fruit Plants

Fruit Plants

Some fruits, including strawberries, prunes, and cranberries, are high in iodine and can be a healthy addition to a balanced vegan diet. Adding these fruits to your diet can help maintain healthy iodine levels.

  • The iodine content of fruit is dependent on the soil it’s grown in.
  • On average, fresh fruit contains less than 1 microgram of iodine per serving.
  • Some sources suggest that these fruits contain very little iodine.
  • It’s important to be aware of the limitations of iodine content in fruits.

Fortified Plant-Based Milk

Fortified Plant-Based Milk

Fortified plant milk, such as soy, almond, and coconut milk, can be a good source of iodine for vegans.

  • The amount of iodine in fortified plant milk can vary by brand and type.
  • Additionally, it’s important to consider other sources of iodine in your diet to ensure adequate intake.
  • Incorporating fortified plant milk into a balanced vegan diet can be a healthy way to maintain iodine levels.



Vegetables can be a good source of iodine for vegans, vegetables, such as green beans, corn, and potatoes, contain iodine.

  • It’s important to be aware of the iodine content in vegetables as it can vary depending on factors like soil quality and farming practices.
  • Additionally, it’s important to watch portion sizes as excessive iodine intake can cause health issues.
  • Incorporating a variety of iodine-rich vegetables into a balanced vegan diet can be a healthy way to maintain iodine levels.

Leafy Greens

Leafy Greens

Leafy greens, such as spring greens and watercress, are also excellent sources of iodine for vegans.

  • Greens like kale, collard greens, and Swiss chard contain small amounts of iodine.
  • Other vegetables like spinach and broccoli also contain iodine, although in smaller amounts.

A daily serving of watercress can provide a significant boost to your iodine levels.

Bread & Grains

Bread & Grains

Most bread and pasta products do not contain significant amounts of iodine unless they are made with iodine-containing dough conditioners or cooked in water seasoned with iodized salt.

  • Bread that uses these conditioners can be a good source of iodine, with around 150 micrograms per slice.
  • Pasta can also be a source of iodine if cooked in water seasoned with iodized salt, with around 38 micrograms of iodine per cup of cooked pasta.
  • However, other grains are not good sources of iodine, with less than 2 micrograms per serving.
  • Reading ingredient lists and choosing iodine-fortified bread and pasta can help increase iodine intake for vegans.

Symptoms and Dangers of Excessive Iodine Intake:

Symptoms and Dangers of Excessive Iodine Intake

Excessive intake of iodine can lead to serious health problems. Here are some interesting facts about the symptoms and dangers of excessive iodine intake:

  • Excessive iodine intake can lead to thyroid dysfunction causing hyperthyroidism or hypothyroidism which can cause weight gain, fatigue, and heart palpitations.
  • It can also cause iodine-induced goiter, which is an abnormal enlargement of the thyroid gland.
  • Consuming too much iodine can result in skin acne and hives accompanied by itching and redness.
  • Excessive iodine intake can cause gastrointestinal problems such as abdominal pain, nausea, vomiting, and diarrhea.
  • Pregnant women who consume excessive amounts of iodine can affect fetal development, causing fetal goiter, hypothyroidism, and mental retardation.

Other Benefits of Iodine for Your Health:

Iodine also plays a role in other aspects of your health, such as fetal and infant development, immune system function, and cognitive function.

Studies have found that iodine deficiency can lead to mental impairment and developmental delays in children, so it’s important to ensure adequate iodine intake during pregnancy and infancy. (Source: National Library of Medicine )

How Much Iodine Do You Need?

How Much Iodine Do You Need?

The daily intake requirement of iodine for vegans is the same as for non-vegans, which is about 150 micrograms per day.

However, since some plant-based foods can contain goitrogens that can limit iodine uptake in the thyroid, it’s important for vegans to ensure they have adequate iodine intake from sources such as iodized salt, seaweed, and supplements, especially if they consume high amounts of goitrogenic foods.

Additionally, maintaining sufficient levels of iron and vitamin A and avoiding smoking can also impact iodine uptake in the thyroid.

  • Excessive iodine intake can lead to iodine toxicity, hypothyroidism, autoimmune disorders, and hyperthyroidism.
  • While iodine-rich foods are not as common as other minerals, it’s still easy to get enough iodine from our diet.
  • Individuals are allowed by the US Department of Health to consume up to 1,100 mcg of iodine per day, but it is not suggested for achieving optimal health.
  • Iodine intake is only a small fraction of our other vitamin and mineral needs, as we only need a tiny amount of iodine from our food.

Factors That Affect Your Iodine Needs:

Certain factors can affect your iodine needs, such as pregnancy, breastfeeding, and iodine deficiency. If you’re pregnant or breastfeeding, your iodine needs are higher because your baby needs iodine for proper growth and development.

FAQs about Vegan Sources of Iodine

Can you get enough iodine on a vegan diet?

Yes, you can get enough iodine on a vegan diet by incorporating iodine-rich plant foods such as seaweed, chia seeds, and fortified plant milk.

Can too much iodine be harmful?

Yes, consuming too much iodine can lead to thyroid dysfunction and other health problems.

Can too much iodine be harmful?

Yes, consuming too much iodine can lead to thyroid dysfunction and other health problems.

Can iodine be found in non-vegan sources?

Yes, iodine can be found in non-vegan sources such as fish, dairy products, and eggs.

Can an iodine deficiency be treated with supplements?

Yes, iodine deficiency can be treated with supplements. Ensuring that a supplement contains all the necessary ingredients such as iodine.


Remember, consuming a balanced diet that includes these iodine-rich foods, vegan iodine supplements, regular exercise, and good sleep hygiene can go a long way in supporting overall health and wellness. So, if you are a vegan looking to optimize your iodine intake, be sure to give these plant-based sources a try.

Now that you know about these seven vegan sources of iodine, which one are you most excited to try in your next meal? Let us know in the comments below!

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