Ashwagandha and Thyroid

Ashwagandha, also known as Withania somnifera, is a popular herb in traditional Ayurvedic medicine, which originated in India over 3,000 years ago. Ashwagandha has gained significant attention in recent years for its potential benefits in supporting thyroid health. The thyroid gland plays a crucial role in regulating various bodily functions, including metabolism, energy production, and hormone balance. In this article, we will delve into the fascinating connection between ashwagandha and thyroid health, exploring its potential effects, scientific research, and practical implications. So, let’s embark on this journey to uncover the secrets of ashwagandha and its impact on the thyroid gland.

Ashwagandha and Thyroid: Understanding the Basics

The thyroid gland, a butterfly-shaped organ located in the front of the neck, is responsible for producing and releasing thyroid hormones. These hormones are vital for maintaining overall health and well-being. When the thyroid gland becomes imbalanced, it can lead to various complications, such as hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid).

Ashwagandha, scientifically known as Withania somnifera, is an herb native to India and is widely used in traditional Ayurvedic medicine. It is known for its adaptogenic properties, meaning it helps the body adapt to stress and maintain homeostasis. Additionally, ashwagandha is rich in antioxidants, iron, and amino acids, which contribute to its potential therapeutic effects.

Types of Thyroid Disorders

Thyroid disorders can be broadly classified into two categories hypothyroidism and hyperthyroidism. Hypothyroidism occurs when the thyroid gland fails to produce sufficient thyroid hormones, while hyperthyroidism is characterized by an overproduction of these hormones.

Symptoms and Causes

The symptoms of thyroid disorders vary depending on whether the thyroid is underactive or overactive. Hypothyroidism often manifests as fatigue, weight gain, depression, and cold intolerance, while hyperthyroidism may cause weight loss, irritability, rapid heartbeat, and heat intolerance. The causes of thyroid disorders can range from autoimmune diseases, iodine deficiency, to genetic factors.

Scientific Research on Ashwagandha and Thyroid Health

Ashwagandha and Thyroid hormone levels

Some animal studies have suggested that ashwagandha supplementation may increase the levels of thyroid hormones, such as T3 and T4. These hormones play a crucial role in regulating metabolism and energy production. However, the available human studies have not consistently shown a significant effect on thyroid hormone levels. Thyroid-stimulating hormone (TSH) is released by the pituitary gland and stimulates the thyroid gland to produce thyroid hormones. Ashwagandha supplementation has been reported to decrease TSH levels in some animal studies. However, human studies have yielded inconsistent results, with some showing no significant effect on TSH levels.

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Ashwagandha and Hypothyroid Patients

In a randomized, double-blind, placebo-controlled trial published in the Journal of Alternative and Complementary Medicine, researchers evaluated the effects of ashwagandha supplementation in individuals with subclinical hypothyroidism. The study found that ashwagandha supplementation resulted in a significant increase in thyroid hormone levels compared to the placebo group. These findings suggest the potential of ashwagandha as an adjunct therapy for subclinical hypothyroidism. However, larger-scale clinical trials are needed to confirm these results.

Ashwagandha and hyperthyroidism Patients

Hyperthyroidism is a condition characterized by an overactive thyroid gland, resulting in elevated levels of thyroid hormones. There is limited research on the effects of ashwagandha in hyperthyroidism. Some animal studies have suggested that ashwagandha may have a normalizing effect on thyroid hormone levels in hyperthyroidism. However, more research is needed to validate these findings and determine the safety and efficacy of ashwagandha in hyperthyroidism.

Effects of Ashwagandha on Thyroid Function

A study conducted by researchers at the University of Delhi aimed to investigate the effects of ashwagandha on thyroid function in animal models. The results showed that ashwagandha extract exhibited significant thyroid-stimulating activity, suggesting its potential in supporting thyroid health. However, further studies are necessary to understand the mechanisms underlying these effects and validate the findings in human subjects.

Can Ashwagandha Improve Thyroid Health?

Ashwagandha, a popular herb in traditional Ayurvedic medicine, has been studied for its potential effects on thyroid health. While research is ongoing, there is evidence to suggest that ashwagandha may have a positive impact on thyroid function and support overall thyroid health.

Ashwagandha is known for its adaptogenic properties, which means it helps the body adapt to stress and maintain balance. Chronic stress can negatively affect thyroid function, and ashwagandha’s ability to reduce stress and support the adrenal glands may indirectly benefit thyroid health.

Additionally, studies have shown that ashwagandha may have a direct effect on thyroid hormone levels. Research conducted on animal models suggests that ashwagandha extracts can help normalize thyroid hormone levels and support thyroid gland activity. Specifically, it has been found to reduce elevated thyroid-stimulating hormone (TSH) levels in individuals with hypothyroidism.

It’s important to note that while ashwagandha shows promise, it should not be considered a substitute for medical treatment or medication prescribed for thyroid disorders. If you have a diagnosed thyroid condition, it’s crucial to consult with your healthcare provider before incorporating ashwagandha or any other supplements into your routine. They can provide personalized guidance based on your specific condition and medications.

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Safety and Side Effects of Ashwagandha for Thyroid Disorders

Ashwagandha is generally considered safe for most individuals when used appropriately. However, as with any supplement or herbal remedy, there are potential safety considerations and side effects to be aware of, especially when using ashwagandha for thyroid disorders. It is crucial to consult with a healthcare professional before starting any new supplements, particularly if you have an existing thyroid condition. Here are some important points to consider:

Interaction with Medications

Ashwagandha may interact with certain medications, including those used to manage thyroid disorders. It is important to discuss with your healthcare provider to ensure there are no potential adverse interactions between ashwagandha and your medications.

Allergic Reactions

Although rare, some individuals may be allergic to ashwagandha. If you experience any signs of an allergic reaction, such as rash, itching, swelling, or difficulty breathing, discontinue use and seek medical attention immediately.

Gastrointestinal Discomfort

Ashwagandha can sometimes cause mild gastrointestinal discomfort, such as nausea, stomach upset, or diarrhea. If these symptoms persist or worsen, it is advisable to reduce the dosage or discontinue use.

Sedative Effects

Ashwagandha has mild sedative properties and may cause drowsiness or sleepiness in some individuals. If you experience excessive drowsiness, it is recommended to avoid activities that require alertness until you know how your body responds to ashwagandha.

Pregnancy and Breastfeeding

The safety of ashwagandha during pregnancy and breastfeeding has not been extensively studied. It is important for pregnant or breastfeeding women to consult with their healthcare provider before using ashwagandha or any other herbal supplements.

Autoimmune Thyroid Conditions

Ashwagandha may have immune-modulating effects, which could potentially impact individuals with autoimmune thyroid conditions such as Hashimoto’s thyroiditis or Graves’ disease. It is crucial to discuss the use of ashwagandha with your healthcare provider if you have an autoimmune thyroid condition.

Remember, individual responses to ashwagandha may vary, and it is essential to monitor your body’s reaction and consult with a healthcare professional if you have any concerns or experience any adverse effects. They can provide personalized guidance based on your specific health condition and help ensure your safety while using ashwagandha for thyroid disorders.

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As with any supplement or treatment, it’s important to approach it with caution, maintain open communication with your healthcare provider, and prioritize their guidance for your specific situation.


Here are some FAQs related to Ashwagandha and Thyroid

Should thyroid patients take ashwagandha?

Ashwagandha may be beneficial for some thyroid patients, but it is important to consult with a healthcare professional before incorporating it into your routine. They can assess your specific condition and provide personalized guidance on whether ashwagandha is suitable for you.

Does ashwagandha reduce TSH?

Ashwagandha has been found to potentially reduce elevated levels of thyroid-stimulating hormone (TSH) in individuals with hypothyroidism. However, the extent of TSH reduction and its effectiveness may vary among individuals. It is advisable to consult with a healthcare professional for proper evaluation and guidance.

Who should avoid ashwagandha?

While ashwagandha is generally safe for most individuals, certain groups should exercise caution or avoid it. These include pregnant or breastfeeding women, individuals with autoimmune conditions, and those taking specific medications. It is crucial to consult with a healthcare professional to determine if ashwagandha is appropriate for your specific situation.

What herbs affect thyroid?

Several herbs are believed to have an impact on thyroid function. Besides ashwagandha, some herbs that may affect the thyroid include bladderwrack, bugleweed, and lemon balm. However, it is important to note that the effects of these herbs on thyroid function may vary, and their use should be discussed with a healthcare professional.

Which herb cures thyroid?

It’s important to note that herbs cannot cure thyroid disorders. However, certain herbs, including ashwagandha, may offer support in managing thyroid conditions by potentially helping to balance hormone levels, reduce inflammation, or support overall thyroid health. It is crucial to consult with a healthcare professional for appropriate diagnosis, treatment, and management of thyroid disorders.


Ashwagandha, a revered herb in traditional medicine, shows promise in supporting thyroid health. Whether it’s managing hypothyroidism or balancing hyperthyroidism, ashwagandha’s potential to influence thyroid function and its overall benefits make it an intriguing natural option. However, it’s crucial to consult with a healthcare professional before starting any supplementation, particularly if you have an existing thyroid condition.

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