Potential Side Effects of Ashwagandha Tea

Reading time:13 min

Published:April 4, 2025

Author:

Cymbiotika

Many of us have turned to a warm cup of herbal tea to find a moment of calm during a busy afternoon. Ashwagandha, a traditional root used for centuries, has recently gained massive popularity in the West for its ability to support the body’s response to stress. However, as with any botanical, what works beautifully for one person might not sit well with another. Understanding the potential side effects of ashwagandha tea is an essential part of being an informed consumer.

Introduction

At Cymbiotika, we believe that wellness starts with trust and transparency. While ashwagandha is generally considered safe for many adults, it is not a "one size fits all" solution. Its impact on your system can vary based on your biology, the dosage, and even the way the herb was processed. This guide explores what you should watch for when adding this adaptogen to your routine.

We will cover the most common physical responses, who should exercise caution, and why the delivery method of your supplements matters for both safety and effectiveness. Our goal is to empower you to listen to your body and make choices that support your long-term health.

Quick Answer: While many people enjoy ashwagandha tea for stress support, common side effects include digestive upset, such as nausea or stomach discomfort, and mild drowsiness. Because it may interact with blood sugar, blood pressure, and thyroid function, it is best to start with small amounts and consult a healthcare professional if you have underlying concerns.

Understanding Ashwagandha as an Adaptogen

To understand why side effects occur, it helps to understand what ashwagandha actually is. It is classified as an adaptogen, a category of plants and mushrooms designed to help the body "adapt" to internal and external stressors. It works primarily by interacting with the hypothalamic-pituitary-adrenal (HPA) axis, which governs how we react to challenges.

The active compounds in the plant are called withanolides. These are naturally occurring steroidal lactones that carry the plant's supportive properties. When you drink ashwagandha tea, you are consuming an aqueous (water-based) extract of these compounds. However, the concentration of withanolides in a tea bag can be highly variable. This inconsistency is often why some people feel nothing at all, while others may experience sensitivities.

For more context on how ashwagandha and magnesium may fit into a calm-focused routine, explore this guide to magnesium glycinate and ashwagandha.

Common Side Effects of Ashwagandha Tea

Most side effects associated with this herb are mild, but they can be disruptive if you aren't expecting them. Because the tea is an oral preparation that must pass through the entire digestive tract, the most immediate reactions often involve the stomach and intestines.

Digestive Sensitivities

Digestive upset is the most frequently reported side effect of ashwagandha tea. For some, the raw fiber or the specific compounds in the root can irritate the mucosal lining of the stomach. This may manifest as:

Mild nausea shortly after consumption
A feeling of heaviness or bloating in the upper abdomen
Loose stools or diarrhea

If you find that drinking the tea on an empty stomach causes discomfort, many people find that having it alongside a small meal helps. The presence of food can buffer the intensity of the herb as it breaks down.

Drowsiness and Relaxation

Ashwagandha is often used in the evening because it may support a sense of calm. However, for some individuals, this effect is much stronger than anticipated. Drowsiness or a feeling of being overly sedated can occur, especially if the tea is brewed very strong.

This happens because ashwagandha may interact with GABA receptors in the brain. GABA (gamma-aminobutyric acid) is a neurotransmitter that helps "slow down" the nervous system. While this is helpful for winding down at night, it might be an unwanted side effect if you are drinking the tea before a morning meeting or while driving.

For readers exploring evening support beyond tea, the Sleep & Stress collection offers another place to compare wellness-focused options.

Blood Sugar and Pressure Variations

The compounds in ashwagandha may influence metabolic markers. Some studies suggest the herb can help maintain healthy blood sugar levels. While this is often a benefit, for people who already have low blood sugar or those taking specific medications, it could lead to a drop that feels like shakiness or lightheadedness.

Similarly, it may support lower blood pressure. If your blood pressure is already on the lower end of the spectrum, drinking large amounts of ashwagandha tea might cause you to feel dizzy when standing up too quickly.

Key Takeaway: Most side effects of ashwagandha tea, like stomach upset or drowsiness, are related to how the body processes the plant's active compounds. Starting with a weak brew allows your system to adjust slowly.

Who Should Avoid or Limit Ashwagandha Tea?

Because ashwagandha is a potent botanical, it isn't suitable for everyone. Certain biological states or health journeys require a more cautious approach.

Pregnancy and Breastfeeding

It is generally recommended that individuals who are pregnant or breastfeeding avoid ashwagandha. Traditionally, high doses of the root were thought to have properties that could interfere with a pregnancy. While a single cup of tea might contain a low dose, the lack of extensive safety data in these populations means it is best to err on the side of caution.

Autoimmune Considerations

Because ashwagandha is designed to support the immune system, it may "upregulate" certain immune responses. For most people, this is a positive. However, for those with autoimmune conditions, where the immune system is already overactive, this stimulation might not be ideal. If your body is prone to over-reacting to external triggers, introducing a potent adaptogen should be done only under the guidance of a healthcare provider.

Thyroid Function

Ashwagandha has a known relationship with the thyroid gland. It may support the production of thyroid hormones. For someone with sluggish thyroid function, this might feel like a boost in energy. However, if your thyroid is already highly active, adding ashwagandha could potentially push your levels too high, leading to feelings of nervousness, a rapid heartbeat, or heat sensitivity.

Myth: "Natural" herbs like ashwagandha tea have no side effects and can be taken by anyone.
Fact: Natural botanicals are chemically complex and can interact with your hormones, immune system, and medications just like synthetic options.

The Bioavailability Factor: Why Format Matters

When we talk about supplements, we have to talk about bioavailability. This refers to the proportion of a nutrient or compound that enters the circulation and is able to have an active effect. Most standard supplements, including teas, face a significant hurdle: the human digestive system.

The Limits of Herbal Teas

Drinking ashwagandha tea is a traditional and comforting ritual, but it is not the most efficient way to deliver active compounds to your cells. Stomach acid and digestive enzymes are designed to break things down. By the time the tea reaches your small intestine for absorption, many of the delicate withanolides may have been destroyed or altered.

Furthermore, the active compounds in ashwagandha are often fat-soluble. Since tea is water-based, many of the most beneficial parts of the root remain stuck in the tea leaves or are poorly absorbed by your gut lining. This is why some people drink massive amounts of tea and feel nothing, while others experience only the digestive side effects without the calming benefits.

For a broader explanation of this topic, read how liposomal delivery relates to bioavailability.

Advanced Delivery Systems

To solve the problem of poor absorption, we focus on liposomal delivery. A liposome is a tiny, microscopic bubble made of phospholipids—the same material that makes up your own cell membranes. By wrapping the ashwagandha extract in this phospholipid bilayer, we can protect the ingredients as they pass through the harsh environment of the stomach.

This method is designed to support absorption at the cellular level. When the liposome reaches the small intestine, it can merge with the cell walls, delivering the nutrients directly into the bloodstream. This typically means you need a smaller dose to achieve the desired effect, which may also reduce the likelihood of the digestive side effects common with bulky herbal powders or teas.

How to Minimize the Risk of Side Effects

If you want to incorporate ashwagandha into your routine safely, a systematic approach is best. You don't need to dive into high dosages on day one.

Step 1: Start with a low dose.
If you are using tea, brew it for a shorter amount of time (2–3 minutes) to see how your stomach reacts. If you are using a more concentrated supplement, look for one that allows for precise dosing.

Step 2: Time it correctly.
Since drowsiness is a common side effect, try your first serving in the evening. This ensures that if you do feel sleepy, it won't interfere with your workday.

Step 3: Monitor your body’s response.
Keep a simple log for the first week. Note any changes in your digestion, energy levels, or mood. Side effects often appear within the first few days as the body adjusts to the new botanical compounds.

Step 4: Check for interactions.
If you take any regular medications—especially for blood pressure, blood sugar, or thyroid function—speak with your doctor. Ashwagandha can amplify the effects of certain drugs, which might lead to your levels dropping lower than intended.

Bottom line: Minimizing side effects starts with a "low and slow" approach to dosing and choosing formats that your body can actually use.

Sourcing and Purity: The Hidden Risks

Sometimes, the "side effects" people experience from ashwagandha tea aren't caused by the ashwagandha itself, but by contaminants. The quality of herbal products varies wildly across the industry. Roots grown in soil contaminated with heavy metals (like lead or arsenic) can carry those toxins into your cup.

Furthermore, some brands use "fillers" or low-quality harvesting methods that include parts of the plant not intended for consumption. We prioritize third-party testing and transparent sourcing to ensure that what is on the label is exactly what is in the product—and nothing else.

When choosing any supplement, look for:

Third-party testing for purity and potency
Non-GMO and organic sourcing
Transparent labeling that lists the exact concentration of active ingredients

Building a Routine with Confidence

Wellness is not about chasing the latest trend; it is about building a sustainable routine that fits your unique life. While ashwagandha tea can be a lovely addition to a quiet evening, it is just one tool in the toolkit. For many, a more comprehensive approach to stress and cognitive support is needed.

If you find that ashwagandha tea doesn't sit well with you, don't be discouraged. There are many other adaptogens and minerals that can support your goals. For example, Magnesium Complex can support relaxation and muscle health without the same hormonal interactions as ashwagandha. Alternatively, a product like Golden Mind is designed to support cognitive function and neuroprotection using a blend of specialized ingredients with enhanced bioavailability.

Our approach at Cymbiotika focuses on the "why" behind every formulation. We want you to feel the difference, which means prioritizing ingredients that your body can actually absorb and utilize.

For readers comparing options related to daily energy and focus, the Energy & Focus collection provides another relevant starting point.

Key Takeaway: Quality and delivery format are just as important as the herb itself. A high-quality, bioavailable supplement is often easier on the system than a poorly processed tea.

Conclusion

Ashwagandha tea offers a traditional way to tap into the benefits of one of nature’s most respected adaptogens. While most people can enjoy it without issue, being aware of potential side effects like digestive upset or drowsiness allows you to use it more effectively. By focusing on high-quality sourcing and understanding the importance of bioavailability, you can minimize risks and maximize the support your body receives.

At Cymbiotika, our mission is to provide you with the cleanest, most effective formulations possible. We believe in empowering you with the knowledge to take charge of your own wellness journey. Consistency over intensity is the key to long-term health, and finding the right routine for your body is the first step.

Start with a low dose to test your sensitivity.
Choose products with high bioavailability for better absorption.
Consult with a healthcare provider if you have underlying conditions.
Prioritize third-party tested products to avoid contaminants.

If you are unsure where to start or which ingredients are right for your specific goals, we can help. Our Health Quiz is designed to provide personalized recommendations based on your unique needs and lifestyle habits. It’s a great way to cut through the noise and build a routine you can truly trust.

"Wellness is a lifelong practice of listening to your body and giving it the high-quality tools it needs to thrive."

FAQ

Can I drink ashwagandha tea every day?

Most people can safely drink ashwagandha tea daily for several months, but it is often recommended to take a break after 90 days. "Cycling" your supplements—such as taking five days on and two days off—can help prevent your body from becoming overly accustomed to the herb. If you experience persistent side effects like stomach pain, it is best to stop daily use and consult a professional.

Does ashwagandha tea cause weight gain?

There is no evidence to suggest that ashwagandha tea causes weight gain; in fact, many people use it to support healthy metabolic function. Because it may help manage cortisol levels, it could potentially support weight management goals for those whose stress levels impact their eating habits. However, if you notice unusual changes in your weight, you should look at your overall routine and consult a healthcare provider.

How long does it take for ashwagandha tea side effects to go away?

If you experience mild side effects like nausea or drowsiness, they typically subside within 24 to 48 hours after you stop consuming the tea. Because the active compounds are processed through the liver and kidneys, they don't stay in your system for an extended period. If symptoms persist longer than a few days after stopping, it is important to seek medical advice.

Can ashwagandha tea interfere with my medications?

Yes, ashwagandha can interact with several types of medications, particularly those for thyroid conditions, diabetes, and high blood pressure. It may also increase the effects of sedatives or anti-anxiety medications due to its impact on the GABA system. Always provide your healthcare provider with a full list of your supplements to ensure there are no contraindications with your current prescriptions.

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Potential Side Effects of Ashwagandha Tea

Table of Contents

Introduction

Understanding Ashwagandha as an Adaptogen

Common Side Effects of Ashwagandha Tea

Who Should Avoid or Limit Ashwagandha Tea?

The Bioavailability Factor: Why Format Matters

How to Minimize the Risk of Side Effects

Sourcing and Purity: The Hidden Risks

Building a Routine with Confidence

Conclusion

FAQ

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Understanding Ashwagandha as an Adaptogen

Common Side Effects of Ashwagandha Tea

Who Should Avoid or Limit Ashwagandha Tea?

The Bioavailability Factor: Why Format Matters

How to Minimize the Risk of Side Effects

Sourcing and Purity: The Hidden Risks

Building a Routine with Confidence

Conclusion

FAQ

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Table of Contents

Introduction

Understanding Ashwagandha as an Adaptogen

Common Side Effects of Ashwagandha Tea

Who Should Avoid or Limit Ashwagandha Tea?

The Bioavailability Factor: Why Format Matters

How to Minimize the Risk of Side Effects

Sourcing and Purity: The Hidden Risks

Building a Routine with Confidence

Conclusion

FAQ

Dive deeper

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Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry

Frequently searched

Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry

Understanding Ashwagandha as an Adaptogen

Common Side Effects of Ashwagandha Tea

Who Should Avoid or Limit Ashwagandha Tea?

The Bioavailability Factor: Why Format Matters

How to Minimize the Risk of Side Effects

Sourcing and Purity: The Hidden Risks

Building a Routine with Confidence

Conclusion

FAQ

Frequently searched

Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry