A-Z thyroid health Articles

Brazil nuts are one of the world's best sources of selenium, which is very important for your thyroid. Eating 1 whole Brazil nut daily provides benefits by giving you 100% of your daily requirements for selenium.

What Are Brazil Nuts?

Brazil nuts grow on one of the largest trees in the Amazon forest. They grow easily to 150 feet and live for more than 500 years, with some of the oldest trees being 1000 years old.

Interestingly, Brazil nuts only grow well in untouched, pristine Amazon forests and are a good example of the complex web of interdependence that characterizes a rain-forest. The trees produce complex, coiled flowers that can only be pollinated by a particular species of bee and that bee is only found in the presence of a particular type of orchid. Once the tree is pollinated, the fruit takes 14 months to mature. Brazil nut trees produce little fruit on plantations and mass production of Brazil nuts is not economically viable. Next time you eat a Brazil nut, try to imagine and taste the amazing rain-forest surroundings that brought it into existence!

Key Health Benefits of Brazil Nuts

Due to their medicinal properties, Brazil nuts offer many health benefits, including:

Cardiovascular Disease

Brazil nuts are high in healthy monounsaturated and polyunsaturated fatty acids that work to protect the heart and blood vessels. Eating brazil nuts will help prevent coronary artery disease and strokes by reducing harmful fat build up on artery walls. Brazil nuts are also high in magnesium, which helps lower blood pressure and is needed to relax the heart muscle.

Weight Loss

A review of 31 studies found that incorporating nuts in to your diet promotes weight loss, especially when eating nuts replaces other foods. Add Brazil nuts to trail mixes or eat 1-3 Brazil nuts with an apple to keep you feeling full and your blood sugar stable, which will promote healthy weight loss. Brazil nuts also contain B vitamins which help combat stress and reduce high cortisol levels, which will fight stubborn belly fat.

Hypothyroidism

Brazil nuts are one of the richest sources of dietary selenium, which is essential to proper thyroid functioning. Selenium is required to produce active thyroid hormone. 1-3 Brazil nuts daily are all you need.

Nutritious Superfood

Brazil nuts are high in minerals like calcium, magnesium, manganese and selenium. They are also high in B vitamins and vitamin E. The selenium in Brazil nuts help produce the antioxidant enzyme glutathione-peroxidase, which works to recycle antioxidants in the body like vitamin E and vitamin C.

Final Considerations & Cautions of Brazil Nuts

Brazil nuts go well with other nuts, seeds, superfoods and antioxidants. It's important to note that you shouldn't consume more than 3-4 whole Brazil nuts a day, to avoid selenium toxicity.

While it's important to speak to your health care practitioner prior to stating a new regimen when pregnant, Brazil nuts are considered safe to eat during pregnancy and while breastfeeding.

When dealing with hyperthyroidism, every day can feel like a whirlwind, with heightened metabolism, restlessness, and disrupted sleep being common challenges. Many people explore natural options to support their thyroid health, and hyperthyroid supplements can offer a targeted boost.

In this article, we'll dive into what hyperthyroidism is, how it affects the body, and the natural supplements that may help support your recovery and balance.

Understanding The Thyroid & Hyperthyroidism 

The thyroid gland sets the metabolic rate for the body. An overactive thyroid causes the body to work too quickly, resulting in nervousness, tremors, sleeplessness, palpitations, sweating, fever, diarrhea and increased appetite with paradoxical weight loss. This overexcitability can eventually lead to death from exhaustion of the body.

A dangerous increase in blood pressure may also result. A hyperthyroid period often precedes hypothyroidism as the gland makes one last attempt to maintain functioning before shutting down.

What Causes Hyperthyroidism?

Grave’s disease is an autoimmune condition that commonly causes hyperthyroidism. Other suspected causes of hyperthyroidism are food sensitivities, mercury poisoning, extreme stress, hormonal imbalances, bowel infections and leaky gut syndrome.

Hyperthyroid Support Options & Supplements

Conventional Treatments

Conventional treatment of hyperthyroidism involves thyroid-blocking medications. In some cases, surgery or gland irradiation is performed. This then leaves the individual in a hypothyroid state. They must replace the thyroid hormone with synthetic thyroid. This is better for the body than remaining in a hyperthyroid state.

Hyperthyroid Supporting Supplements

Natural treatment of hyperthyroidism involves identifying food allergens, assessing for metal toxicity, using natural thyroid suppressors and supporting the body with vitamins and minerals. Eat lots of whole and fresh foods to replace the nutrients lost to excessive metabolism. They also provide enzymes to help with food digestion. Use green vegetables, whole grains and nutritional yeast for B vitamins.

Nutritional Support

Eat broccoli, brussels sprouts, cabbage, cauliflower, kale, peaches, pears, rutabagas, soybeans, onions, spinach and turnips because they suppress thyroid hormone function. Avoid iodized salt, coffee, black tea, chocolate and colas, which speed up metabolism. Avoid the most common food allergens for hyperthyroid patients, which are dairy products, wheat, caffeine and nicotine products.

Nutritional support for hyperthyroidism consists of providing the body with optimum doses of nutrients that it needs to cope with stress and providing nutrients that this disorder depletes. Of these, the B complex vitamins are very important, as both your brain and your stress glands need them to function properly.

People with an overactive thyroid can often be deficient in these nutrients. You might also consider herbs that help you relax naturally without side effects.

Lifestyle Habits

Proper sleep and moderate exercise help regulate thyroid functioning. So does controlling the stress you experience in your life. If you have an overactive thyroid and your stress level is very high, you need to make some lifestyle changes or learn to adapt to the stress more effectively.

Low thyroid has become a very common health concern with very real symptoms that affect both a person’s physical and emotional health. Many people may have it yet do not know; in fact, it can go undiagnosed for many years because the “normal” level of thyroid hormones can vary from person to person. Let's explore ways to diagnose hypothyroidism, as well as supplements that can help with hypothyroid symptoms.

Diagnosing Hypothyroidism 

Many natural health care practitioners prefer the reliability of the basal temperature test (done in the morning) because it can identify people with borderline low thyroid. There can be many causes of low thyroid, including: hormonal changes (especially during pregnancy), lack of iodine in the diet, an abnormal immune system reaction (as in Hashimoto’s), heredity, stress, treatment for an overactive thyroid, chemical pollutants and heavy metal poisoning. It is important to discover the exact cause of low thyroid so that the root cause can be treated.

Low thyroid causes the body to be slightly colder than that of a healthy person. While only the difference is at most two degrees, it can have broad ranging effects on many different functions of the body, resulting in many different symptoms.

Symptoms of Hypothyroidism 

Firstly, in a hypothyroid state, the body’s metabolic rate is decreased. This is why most people with low thyroid experience weight gain. Secondly, lower thyroid hormone levels can disrupt neurotransmitter production and function. These changes may cause depression, anxiety, poor memory, and insomnia. Reduced body temperature can impair digestive enzyme activity. This dysfunction may cause gas, heartburn, constipation, and stomach upset. Low temperatures can also affect insulin function. Many people with hypothyroidism experience blood sugar fluctiontions. Some symptoms may require additional treatment alongside thyroid support.

Low thyroid can also: lower immune system function, cause dry skin, lower blood pressure and raise cholesterol, promote water retention, cause menstrual irregularities in women, cause muscle aches and pain, and create allergies. Hypothyroid sufferers also report fatigue, an increased need for sleep, decreased initiative, lack of concentration, poor memory, bowel changes, muscle and joint aches, and asthma. Because of the broad range of effects that low thyroid has on overall health, it is important that it be treated. Left untreated, long-term hypothyroidism can cause serious concerns that can affect your quality of life.

Key Hypothyroid Supporting Supplements

Iodine As A Thyroid Supplement

Iodine is a mineral needed for all aspects of your health. Potassium iodide is a salt of stable iodine. For the most part, we can get adequate amounts of stable iodine from the foods that we eat. Potassium iodide is a medicinal form of stable iodine.

Radioactive iodine enters the air after nuclear or radiological events. People can inhale it or consume contaminated food and water. Once present in the body, the thyroid gland will begin to rapidly absorb it/take it up. Potassium iodide competes with radioactive iodine at receptor sites. It fills these sites and prevents the thyroid from taking up any of the radioactive substance. Its action at these receptor sites lasts 24 hours, meaning the thyroid is unable to take up any iodine – stable or radioactive – during that time.

Often difficult to get from the diet, iodine is an essential trace mineral necessary for overall health. Your thyroid gland needs this mineral to manufacture optimum levels of the thyroid hormones thyroxine (T4) and triiodothryonine (T3). These hormones – based on iodine and the amino acid tyrosine – regulate your body's overall metabolism and also play a regulating role for other hormones produced by the body.

When there is not enough iodine present, your thyroid (located in the throat area) is unable to produce enough thyroid hormone, causing weight gain, low energy, poor concentration (brain fog), depression, blood sugar fluctuations and other symptoms.

It is important to understand that potassium iodide does not protect the body as a whole from radioactive iodine, nor does it prevent any other body part from taking it up. Its actions are very specific to the thyroid. It has no effect on other radioactive elements, like cesium, nor on the effects these elements may have on the body.

Infants and children are at the highest risk of developing thyroid cancer due to an accumulation of radioactive iodine. Infants who are breast feeding still need some sort of supplementation, as the breast milk will not contain enough stable iodine to protect the infant from exposure. Adults aged 18 and older should take 130mg of potassium iodide. Children ages 3 to 18 should take 65mg. Adult-sized adolescents should take 130mg. Children ages one month to three years need 32mg. Newborns require 16mg.

Dosing Iodine

A one time dose of potassium iodide is usually all that is recommended . If there is a threat that radioactive iodine will be in the environment for longer than 24 hours, public health officials may inform the public to take the supplement for a few days in a row. Please seek the advice of your local healthcare practitioner or public health agency. High doses or long-term potassium iodide use can pose health risks. Infants, children, and people with thyroid disorders face greater risks. Taking extra potassium iodide provides no added protection. Excessive use may increase the risk of side effects.

Consuming Iodine

Dietary iodine has become difficult to obtain naturally. Manufacturers now fortify staple foods such as salt with iodine. Iodized salt contains an inorganic form of iodine. Natural, organic sources, such as those derived from the seaweeds kelp and bladderwrack, are much more absorbable and easier for the thyroid gland to use than the inorganic (mined) sources used to enrich foods.

Iodine Supplements For Hypothyroid Support

Supplement manufacturers often source iodine from seaweed. They offer iodine in liquid, capsule, and tablet forms. The standardized types of these supplements contain a higher level of iodine and a consistent amount in each tablet – usually about 150mcg. This is the preferred form for clinical use in low thyroid conditions, while the un-standardized kelp is suitable for people in need of a daily supplement.

Treatment Options & Supplements For Hypothyroid Support

Conventional Treatments For Hypothyroid

Conventional treatment of hypothyroidism involves supplementation with synthetic thyroid hormone.

Most hypothyroid patients benefit from T4 supplementation but it must be converted by the body into active T3. In a small percentage of people, this conversion is inadequate. They require medication that contains both T3 and T4.

Side effects of these medications cause similar symptoms to hyperthyroidism. They can also cause a loss of bone mass. Many medications can interact with thyroid medication.

Talk to a health professional to determine the best time to take your medication. Avoid taking thyroid medication with calcium supplements.

Nutritional Supplements For Hypothyroid

Nutritional support for an underactive thyroid gland can include, among many other supplements, thyroid glandular extract. Thyroid glandular boosts the activity of your own thyroid gland, optimizing its production of T3 and T4. Ensuring that you are getting enough of important nutrients like iodine and tyrosine is crucial for natural thyroid support. Please see the table below for extensive information about which supplements can be used as part of a thyroid support regimen.

Lifestyle Factors For Hypothyroid Support

Exercise is important when you have low thyroid. Daily aerobic exercise stimulates the thyroid gland and improves the use of thyroid hormone in the body. Saunas, steam baths and dry skin brushing stimulate the thyroid. Regular detoxification programs are important because low thyroid can cause you to retain more toxins than a healthy person. Toxicity may also play a role in the development of the disorder itself.

Dietary treatment of hypothyroidism involves ensuring adequate iodine, copper, zinc, selenium, vitamin A and vitamin E intake. Consume the following foods: seaweeds, fish, clams, lobster, oysters, eggs, natural yogurt, unhomogenized milk, raw wheat germ, pumpkin seeds, beet greens, parsley and carrots. Avoid chlorinated and fluoridated water because they block iodine receptors in the thyroid. Avoid broccoli, brussels sprouts, cabbage, cauliflower, kale, peaches, pears, rutabagas, soybeans, onions, spinach and turnips because they suppress thyroid hormone function.

Overall, once you know you have low thyroid, half the battle is over. You might notice that when you are under stress, your symptoms of low thyroid are more pronounced. It is important - as with any major health concern – that you maintain a positive attitude and remain focused on your treatment protocol. Dealing with low thyroid can be frustrating, but not as frustrating as letting the symptoms go untreated.

Iodine is a trace mineral that is essential in the human body. It is used in several different processes in your body, the most important of which is the production of thyroid hormone. Iodine has also been used throughout the past for cleaning wounds and purifying drinking water. Some more recent research has shown iodine supplements to be beneficial in the treatment of fibrocystic breast disease as well.

Understanding Thyroid Health & Iodine Supplements Benefits

Thyroid Hormone and Metabolism

The thyroid gland is located in the neck and is the master gland controlling our metabolism and metabolic rate. One of the major building blocks of thyroid hormone is iodine.

Your thyroid gland needs this mineral to manufacture optimum levels of the thyroid hormones thyroxine (T4) and triiodothryonine (T3). These hormones, made from iodine and the amino acid tyrosine, regulate your body's overall metabolism and also play a regulating role for other hormones produced by the body.

Thyroid and Goiters – Iodine Deficiency

There are regions of North America where iodine is lacking in the soil (and thus the diet) that are referred to as the "goiter belt" because of the high incidence of goiters. Goiter is the medical term used to describe the bulge in the neck created when the thyroid enlarges from overstimulation. Iodine deficiency causes insufficient thyroid hormone, which is a condition called "hypothyroidism". This occurs when the thyroid is unable to make sufficient thyroid hormone, and the pituitary gland sends greater and greater stimulatory signals (TSH), trying to boost production. This causes the thyroid to enlarge in an attempt to meet the needs of the body. The symptoms of hypothyroidism appear as weight gain, low energy, poor concentration (brain fog), hair loss, depression, blood sugar fluctuations and other symptoms.

Radioactive Iodine & Nuclear Events

Following a radiological or nuclear event, radioactive iodine is released into the air, and taken up through our lungs when we breathe. It can also contaminate local food supply and water supply and be ingested. Once present in the body, the thyroid gland will begin to rapidly absorb it/take it up. Potassium iodide competes with radioactive iodine at receptor sites. It fills these sites and prevents the thyroid from taking up any of the radioactive substance. Its action at these receptor sites lasts 24 hours, meaning the thyroid is unable to take up any iodine – stable or radioactive – during that time. It is important to understand that potassium iodide does not protect the body as a whole from radioactive iodine, nor does it prevent any other body part from taking it up. Its actions are very specific to the thyroid. A one-time dose of potassium iodide is usually all that is recommended. If there is a threat that radioactive iodine will be in the environment for longer than 24 hours, public health officials may inform the public to take the supplement for a few days in a row. Please ask the advice of your local healthcare practitioner or public health agency.

Fibrocystic Breasts

Fibrocystic breast tissue is caused by hormonal changes in the body resulting in dense regions of breast tissue that change throughout the menstrual cycle. These dense pockets can often make performing self-breast-examinations more difficult, and often create false fear, where none is needed. Taking iodine has been shown in some instances to help reduce the signs and symptoms of fibrocystic breast syndrome.

Shopping For Quality Iodine Supplements

Topical Use

Iodine has been used for hundreds of years to prevent and treat infections from minor scrapes and cuts in the skin. When applied to the skin, it can kill the bacteria that cause infections. Liquid iodine can be applied to wounds as needed to help keep them clean. Some research has found success in using iodine to treat diabetic foot ulcers.

Dietary Iodine

Iodine has become so difficult to get into the diet that staple foods like table salt are now enriched with iodine. In the case of iodized salt, the inorganic form of iodine is added. Natural, organic sources, such as those derived from seaweeds are much more absorbable and easier for the thyroid gland to use than the inorganic (mined) sources used to enrich foods.

Supplementing Iodine

Potassium iodide is a common supplemental and medicinal form of iodine because it is stable. In a supplement form, iodine is usually derived from natural seaweed sources and is available in both liquid and capsule or tablet, forms. The standardized types of these supplements contain a higher level of iodine and a consistent amount in each tablet – usually about 150mcg (0.15mg). This is the preferred form for clinical use in low thyroid conditions, while the unstandardized kelp is suitable for people in need of a daily supplement without an underlying condition.

Kelp is an edible seaweed, of the brown algae family (Phaeophyceae) that is extremely rich in health-promoting nutrients. It contains all of the B vitamins, plus macro minerals and trace minerals. Kelp offers several health benefits because it contains iodine, a major component of thyroid hormone, the hormone responsible for setting the body's metabolic rate. The fibre content of kelp, known as "alginate", has also been shown to help slow fat absorption in the gut, thus aiding in weight loss.

Exploring The Nutritional Content of Kelp

Kelp's mineral content benefits the brain, nerves, blood vessels, hair, skin and nails. It can also help to protect the body from damage due to radiation. Natural health practitioners recommend kelp for a variety of conditions including hypothyroidism, hair loss, obesity, ulcers, constipation, radiation sickness and poor mineral status.

Key Health Benefits & Advantages of Kelp

Alginate and Weight Loss

There is a fibre extracted from kelp called alginate that has been used as a thickener in several processed products such as jellies, desserts, toothpaste and even dog food. One 2010 study found that alginate from kelp is better at slowing fat absorption than most over-the-counter weight loss treatments. In this way, alginate is used much like agar before or during a meal to increase bulk in the stomach to speed the feeling of "fullness" with the meal and to slow the absorption of excess fat during digestion.

Iodine Benefits of Kelp

Iodine has become difficult to get in the diet and staple foods like table salt are now enriched with iodine. In the case of iodized salt, the inorganic form of iodine is added. Natural, organic sources, such as those derived from the seaweeds known as kelp and bladderwrack are much more absorbable and easier for the thyroid gland to use than the inorganic (mined) sources used to enrich foods.

Iodine Content and Radioactive Iodine

Kelp, rich in iodine, has the potential to protect the thyroid from taking up radioactive iodine, in the case of a nuclear disaster, as seen in Japan in March of 2011. Radioactive iodine is strongly associated with the development of unhealthy thyroid cells, especially in infant and child populations. The iodine found in kelp binds with receptors on the thyroid gland, essentially filling the receptors, making it impossible for radioactive iodine to bind and be utilized by the gland in the making of thyroid hormone. Excess iodine can cause thyroid dysfunction, so it is not advised long-term, especially in children. Individuals with a hyperthyroid condition are not advised to take Kelp or iodine.

Hypothyroidism Benefits of Kelp

Some cases of hypothyroidism can be attributed to a lack of iodine, and this causes a swollen thyroid (goitre). When there is insufficient iodine available to the thyroid gland, it is not able to produce sufficient thyroid hormone. Thus, it cannot properly regulate the body's metabolism, a condition known as hypothyroidism. Hypothyroid individuals experience many symptoms due to a lack of thyroid hormone including fatigue, weight gain, hair loss, constipation, and frequent colds and flu.

Ways To Include Kelp In Your Diet

Kelp can be eaten raw but it is usually found dried in sheets, or powdered for use as a salt substitute. A liquid form can be added to drinking water. As a supplement kelp is found in tablets. Some commercial "green food" smoothies and "energy" drinks may contain kelp. Green food supplements are combinations of medicinal foods and herbs and may contain kelp. In a supplement form, iodine is usually derived from natural seaweed sources and is available in both liquid and capsule or tablet, forms. The standardized types of these supplements contain a higher level of iodine and a consistent amount in each tablet – usually about 150mcg (0.15mg). This is the preferred form for clinical use in low thyroid conditions, while the unstandardized kelp is suitable for people in need of a daily supplement for health maintenance.

What is Selenium?

Selenium is an essential trace mineral with a rich history dating back to early 20th-century research, when scientists began uncovering its role in animal and human health. Traditionally, it was sourced naturally from soil and foods like Brazil nuts, seafood, and grains. However, modern soil depletion in many regions, due to intensive farming and nutrient-poor soils, has reduced nutrient levels in our diets, making supplementation important.

Selenium's primary function is as a potent antioxidant, neutralizing free radicals that can damage cells. Free radicals are unstable molecules that, in their quest to become stable, can harm healthy cells, contributing to oxidative stress. This damage can promote cardiovascular disease by oxidizing LDL cholesterol, leading to atherosclerotic plaques.

Beyond heart health, free radicals can accelerate aging, contribute to neurodegenerative diseases, and impair immune function. By neutralizing these harmful molecules, selenium helps protect cells, preserve other vital nutrients, and support long-term health.

Selenium Health Benefits

Antioxidant Protection

Selenium’s antioxidant properties also help in keeping cells healthy. Unhealthy cell growth can result from free radicals damaging the cellular genetic material. It is also believed to be an anti-aging vitamin because as an antioxidant, it protects the body against environmental pollutants other substances that and lead to aging.

Metabolism Benefits

Selenium regulates fat metabolism by controlling the production of thyroid hormone. Along with vitamin E, they act together to produce the antibodies which are important for protecting the body from infections.

Men's Health Support

Selenium supplementation is particularly important for men because it concentrates in the testicles and is lost through seminal fluid. Along with vitamin E and zinc, it has been shown to reduce prostate inflammation, and has been used to treat many conditions including male infertility, asthma, arthritis, cataracts, AIDS, hypothyroidism, alcoholic cirrhosis and high blood pressure.

Shopping For Selenium Supplements

Selenium supplements are available in tablet or capsule form. It is often grown on yeast and may not be suitable for those who are sensitive to yeast or have a tendency towards candida infections.

Selenomethionine is another highly active form of this trace mineral that does not contain yeast. It works well with vitamin E, vitamin C, and beta-carotene and can often be found in a complex with these other antioxidants.

Selenium levels may be decreased by high dose corticosteroid therapy (prednisone).

What is The Thyroid?

Nestled in the front of your neck, the thyroid is a small, butterfly-shaped gland that plays a crucial role in regulating your body's metabolism. It controls how your body processes sugar, fat, and protein. It also influences key functions, like heart rate, body temperature, digestion, fertility, and skin and bone health. Maintaining the right balance of thyroid hormone is vital, ensuring your body stays energized while also having time to repair and thrive.

Symptoms of Hypothyroidism

Low thyroid function is common in today’s society. This is due in part to stressful lifestyles, lack of nutritious foods and an increase in environmental pollutants. 

Signs your thyroid may be low functioning include: 

• Weight gain
• Frequent infections
• Dry and cold skin
• Poor nail growth and hair loss
• High cholesterol
• Swelling of the hands and feet
• Menstrual irregularities
• Goiter
• Fatigue and an increased need for sleep
• Decreased initiative, lack of concentration, and poor memory
• Bowel changes
• Muscle and joint aches
• Allergies and asthma

Supplements to Improve Thyroid Hormones

If you notice a change in your thyroid hormone levels and are diagnosed with hypothyroidism, Thyroxin is available by prescription in Canada. But, if you'd like a natural product, a supplement called Thyroid or Armour thyroid contains both T4 and the more active T3. This is important for a small percentage of people who can’t convert T4 into T3. 

Most thyroid glandular supplements are certified thyroxin- free to eliminate the risk of sending users into a hyperthyroid state. The best source for glandular extracts is New Zealand, where they are free from pesticides, growth hormones, antibiotics and disease.

Here are several alternatives to enhance your body’s production of thyroxin without taking thyroxin itself:

• Protein intake is important because it contains the amino acid tyrosine, a precursor to thyroxin.
• Vitamins and minerals are needed to produce and convert thyroxin into the more potent T3. These nutrients include iodine, copper, zinc, selenium, vitamin A and vitamin E.
• Thyroid glandular is an extract of the thyroid gland of an animal, usually a sheep or cow. It supports the activity of the thyroid and regulates metabolism. It may provide its users with a mild increase in energy and stamina.

Dietary considerations for optimizing thyroid functioning include:

• Avoiding chlorinated and fluoridated water because they block iodine receptors in the thyroid. 
• Avoiding broccoli, brussel sprouts, cabbage, cauliflower, kale, peaches, pears, rutabagas, soybeans, onions, spinach and turnips because they suppress thyroid hormone function.