Ashwagandha is one of the most used herbs in Ayurveda. It is scientifically known as Withania Somnifera. While it offers an array of health benefits, the side effects of ashwagandha are also documented. In people with allergies or autoimmune diseases, ashwagandha may cause adverse effects as it has immunomodulatory and hypoglycemici XA property characterized by blood sugar levels that fall below the healthy range, causing sweats, chills, and tremors. properties. There is also some evidence that it may cause abortions. In this article, you will read more about such negative effects of this herb. Scroll down to know more about Ashwagandha’s side effects.
May cause drowsiness, headache, stomach upset, or excessively low blood sugar levels.
Liver health might be affected in certain circumstances.
May interact with medications that suppress the immune system responses or are used to treat insomnia as well as medication for lowering blood pressure.
When To See A Doctor
If you experience an allergic reaction such as rashes, difficulty in breathing, and chest pain.
In This Article
What Are The Side Effects Of Ashwagandha?
1. May Be Harmful During Pregnancy And Breastfeeding
Ashwagandha side effects for females may also cause miscarriages. There is little information on the safety of ashwagandha during breastfeeding. Hence, stay on the safe side and avoid its use.
2. May Cause Liver Damage
Patients taking commercial herbal products containing ashwagandha were found to experience liver injuries (2). However, the herb’s mechanism in this regard is yet to be understood.
3. May Lower Blood Sugar Way Too Much
Studies show that ashwagandha can lower blood sugar levels (3). However, this may not be beneficial to someone on diabetes medication. The herb may lower blood sugar levels way too much. These changes in the blood sugar level can cause other complications.
Studies showed hypoglycemici XA property characterized by blood sugar levels that fall below the healthy range, causing sweats, chills, and tremors. effects and effects on insulin sensitivity in diabetic rats (4), (5). Hence, those on diabetes medications may experience adverse effects with the intake of ashwagandha.
4. May Aggravate Hyperthyroidism
Ashwagandha is known to increase thyroid hormone concentrations. Hence, those with hyperthyroidism may experience undesirable symptoms (6). Hyperthyroidism is a condition characterized by excess levels of thyroid hormones in the serum.
Individuals diagnosed with hypothyroidism (underactive thyroid) must also consult their doctor before taking ashwagandha as the herb may interact with the associated medications and bring changes in thyroid hormone levels.
5. May Aggravate Autoimmune Diseases
Ashwagandha extract is known to boost the immune system (7). This property may be a problem for individuals diagnosed with autoimmune disorders, like rheumatoid arthritis, lupus, and multiple sclerosis. Medications taken for treating autoimmune diseases decrease immune system response, and supplementing them with ashwagandha may interfere with their effectiveness. More research is needed to understand the mechanism of ashwagandha on autoimmune diseases.
6. May Cause Gastrointestinal Issues
Excess ashwagandha may irritate the gastrointestinal tract (2). Hence, those with stomach ulcers are suggested to avoid the herb. Constipation was another side effect seen in a group that took ashwagandha (8). The herb may also cause diarrhea and an upset stomach (2).
7. May Cause Drowsiness
It may cause changes in sleep patterns. In rat studies, ashwagandha was found to have relaxing properties that might lead to drowsiness (9). Hence, someone on medications for insomnia may experience excessive sleepiness with the herb intake.
Ensure you don’t use the herb in conjunction with sleep medications like lorazepam, zolpidem, or alprazolam. Though the research about herb-drug interactions is limited, it is important to exercise caution.
Studies have also confirmed the sleep-inducing properties of ashwagandha (10). Taking the herb along with sedatives may lead to excessive drowsiness. Hence, consult your doctor.
8. May Lead To Erectile Dysfunction
It can cause negative changes in sexual function. As per researchers from the University of Ruhuna, ashwagandha root extract may cause erectile dysfunctioni XA condition experienced by certain men that is characterized by the inability to keep an erection long enough to engage in sexual activity. and decrease male sexual performance (11). Though the herb is believed to be an aphrodisiaci XSubstances used to stimulate and increase sexual desire, pleasure, and arousal, which are abundant in almonds and pumpkin seeds. , this is something to be considered. More research on humans is needed to understand this phenomenon further.
9. May Causes Allergies
Allergic reactions have been reported anecdotally among some individuals who have taken ashwagandha. The reactions may include skin rashes, itchiness, inflammation, chest pain, dizziness, headache, and difficulty in breathing. People allergic to nightshades may also be allergic to ashwagandha. However, we need more research on this.
10. May Cause Fever
The use of ashwagandha may increase body temperature in some individuals. However, how this happens is yet to be understood. The elevated body temperature is said to return to normal in a few days. Information on this aspect is insufficient. If you have a high body temperature for any reason, consult your doctor before taking ashwagandha.
11. May Cause Bleeding
Ashwagandha may cause bleeding. Individuals with bleeding disorders are not recommended to take the herb. However, no concrete research supports this, except for anecdotal evidence.
12. May Cause Dry Mouth
Intake of excess ashwagandha may cause dry mouth in certain individuals. Though there is not enough research, it is better to exercise caution and consult your doctor if the condition arises.
Most of the side effects of ashwagandha are based on anecdotal evidence. While more research is ongoing, it is important to take precautions.
13. May Cause Kidney Damage
It may cause negative changes in kidney function. As per research, with its immunostimulatory effects, ashwagandha may lead to kidney allograft rejection (12). Therefore, people considering a kidney transplant should consult their doctor about the same.
14. May Lower Blood Pressure
While ashwagandha on its own might be beneficial for people with hypertension, its ability to lower blood pressure could prove fatal if combined with other hypertension-lowering drugs and medications. In addition, it could also prove dangerous for people with low blood pressure conditions (13). That’s why it is essential to consult a doctor before adding it to your wellness regimen, especially if you have any pre-existing conditions related to changes in blood pressure.
15. May Induce Drug Interactions
If you are on any medication, you should consult a doctor before you include Ashwagandha in your wellness routine. Ashwagandha may result in drug interactions, especially with sedatives, liver medications, diabetes, thyroid, cholesterol, or hypertension-related medications (4), (9), (10), (2),(7), (6). It may also cause changes in the immune system as it may interact with immunosuppressants.
Ashwagandha may also cause other side effects. Mary Sabat, MS, RD, LD, says, “Even though ashwagandha is thought of as a calming herbal supplement, it may cause anxiety in some people. In Ayurvedic medicine, it is believed that the ashwagandha’s heating energy may cause anxiety in some people due to its stimulating effects. The herb is also known to increase energy levels, alertness, and activity, which can be overwhelming for people who are prone to anxiety. Additionally, ashwagandha can also increase cortisol and adrenaline levels, both of which are hormones associated with stress.”
She adds, “Herbal supplements can be potent and work like drugs in the body. For most people, this herb is an adaptogen and helps with stress and sleep but for others, it could have the opposite effect leading to anxiety and possibly weight gain.”
Given the above side effects of ashwagandha, it is essential to consult a licensed medical practitioner before taking this herb in any form. Also, there are certain health conditions and situations wherein you should avoid ashwagandha altogether.
Who Should Not Take Ashwagandha
You should not include ashwagandha in your wellness routine in any form if you are dealing with any of the below health conditions.
- Pregnancy: Ashwagandha has not been widely studied for its effects on human pregnancies. It is therefore advised to avoid its consumption when pregnant.
- Hyperthyroidism: Ashwagandha may alter the normal functioning of the thyroid and may increase the thyroid hormones. This could be dangerous for people with hyperthyroidism (14). It may also interfere with the results of thyroid tests, so it’s important to inform your doctor if you are taking ashwagandha in any form.
- Prostate Cancer: Ashwagandha may potentially increase your serum testosterone levels which could be dangerous for people with prostate cancer (15).
- An Autoimmune Condition: Ashwagandha has immunostimulating properties, which can help boost the immune system (7). This may decrease the effects of immunosuppressant drugsi XDrugs that suppress the immune system when it mistakenly attacks healthy cells and tissues, particularly a transplanted foreign organ. generally used for managing autoimmune disorders.
- Diabetes: Animal studies suggest that Ashwagandha may decrease blood sugar levels (4), (5). While it’s still not yet established for humans, people with diabetes should consult with their doctor before taking ashwagandha.
- Liver Concerns: Ashwagandha, beyond its prescribed dose, may affect your liver health or aggravate pre-existing liver conditions (2). So you should consult your doctor before including it in your routine.
- Impending Surgery: In case of an upcoming surgery that requires anesthesia, you should stop taking ashwagandha at least two weeks ahead to avoid any potential drug interactions (16).
While most of the risks of ashwagandha may seem to be based on anecdotal evidence, it is still important to take precautions to avoid any adverse effects.
Precautions To Be Taken
It is important to take ashwagandha in the right dosage. Strictly follow medical advice to prevent any adverse reactions. Certain other precautions that one must take include the following:
- Ashwagandha root extract should be used only as a supplement as it is non-toxic in comparison to Withaferin A (the anticancer molecule).
- It is advisable to take ashwagandha with meals (or breakfast) with a full glass of water.
- As ashwagandha may increase the effects of certain drugs or medications, it is important to review the drugs or medications that you are taking before consuming them.
- Those who experience abdominal disorders after using ashwagandha should consult their doctor. Large doses of ashwagandha may cause stomach upset, diarrhea, and vomiting.
The ideal dosage of ashwagandha would be suggested by your doctor or healthcare provider. However, there are some recommendations you may want to know.
- Powder (leaf): 1-2 teaspoons a day
- Root: 1-2 teaspoons a day
- Capsule: 1-6 g of the whole herb (by mouth) per day
- Tea: 3 cups of the whole herb per day (1-6 g)
- Tincture: 2-4 mL (by mouth), thrice a day
Exceeding the dosage may cause side effects. There is less research to substantiate these dosage values. You may talk to your doctor for the exact dosage for you.
Infographic: What To Look For In Ashwagandha Supplements?
Ashwagandha is a widely used herb with many medicinal values. However, it also may cause side effects. Consuming contaminated or poor-quality products made of this herb may harm one’s health. The good news is – considering certain factors beforehand can help minimize the risk of these negative effects. Click on the infographic below to learn how to prevent ashwagandha gummies’ side effects.
Ashwagandha is a popular herb with many medicinal properties. It has been used for treating many ailments and has a long history in alternative medicine. However, one must also be aware of some of the side effects of ashwagandha. Excess intake of this herbal remedy may induce abortion, changes in the liver fucntion, lower blood sugar levels way too much, aggravate hyperthyroidism, and lead to autoimmune disease. Also, if you want to opt for ashwagandha supplements, get them from a reliable manufacturer. As it is not suitable for everyone, consult your doctor before using this herb.
Frequently Asked Questions
Can ashwagandha cause weight gain?
While no research yet states that ashwagandha can cause weight gain, one particular study suggests that the herb may help with weight management in adults dealing with chronic stress (17).
Can I take ashwagandha in the morning?
Yes, ashwagandha is an adaptogen and can be taken in the morning to help combat fatigue, stress, and positive changes in mood or behavior positively. However, it’s important to note that everyone reacts differently to supplements.
Should you take ashwagandha on an empty stomach?
There is no scientific evidence on the effects of ashwagandha on an empty stomach. However, if you feel discomfort or experience symptoms such as nausea or vomiting, contact a medical supervisor immediately.
Can you feel ashwagandha benefits right away?
No, ashwagandha and similar adaptogens need time to work and show results. It may take up to 60 days of regular consumption to realize its beneficial effects.
Can ashwagandha cause hair loss?
No, instead, ashwagandha could potentially help alleviate stress-related hair loss by reducing the cortisol levels in the body (18). However, there is no established evidence to support the role of ashwagandha in preventing or causing hair loss.
Can ashwagandha make you feel weird?
If taken beyond the prescribed dosage, Ashwagandha may make you feel drowsy, nauseous, or uncomfortable.
Is ashwagandha good for belly fat?
Ashwagandha is believed to have a natural cortisol-lowering property, which helps reduce stress. High levels of stress often lead to the storage of abdominal fat. Hence, ashwagandha, when combined with the right lifestyle changes, may help reduce belly fat. However, limited research is available in this regard. Mary says, “While ashwagandha has been linked to weight gain in some studies, the mechanism by which it may increase belly fat specifically has not been studied in detail. If cortisol is increased in a person using this herb however they would be more prone to put on belly fat as cortisol decreases insulin sensitivity and leads to fat storage around the abdomen. If a person decreases cortisol while using the herb they would be less likely to gain belly fat.”
Does ashwagandha cause body odor?
In Sanskrit, ashwagandha literally means “odor of the horse” (as the root smells like horse’s urine). However, taking this root doesn’t make one smell bad.
Does Ashwagandha make you emotionless?
Though there is no scientific evidence to prove this, anecdotal evidence suggests that Ashwagandha may cause emotional bluntness and a feeling of disassociation.
- Ashwagandha may cause several side effects in people with autoimmune disorders and allergies.
- It may induce abortions, cause liver damage, lower blood sugar levels too much, and aggravate hypothyroidism.
- In addition, people with prostate cancer, autoimmune conditions, and liver problems should avoid using this remedy.
Understand the potential side effects of ashwagandha and learn how to stay vigilant and safe. Discover the warning signs and precautions by watching the insightful video given below. Check it out!
- Ashwagandha | Memorial Sloan Kettering Cancer Center
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- Kumar, A., and H. Kalonia. “Effect of Withania somnifera on sleep-wake cycle in sleep-disturbed rats: Possible GABAergic mechanism.” Indian journal of pharmaceutical sciences 70.6 (2008): 806.
- Kaushik, Mahesh K., et al. “Triethylene glycol, an active component of Ashwagandha (Withania somnifera) leaves, is responsible for sleep induction.” PloS one 12.2 (2017).
- Ilayperuma, I., W. D. Ratnasooriya, and T. R. Weerasooriya. “Effect of Withania somnifera root extract on the sexual behaviour of male rats.” Asian Journal of Andrology 4.4 (2002): 295-298.
- Ashwagandha and Kidney Transplant Rejection – PMC
- Effect of Ashwagandha (Withania somnifera) Root Powder Supplementation in Treatment of Hypertension
- Efficacy and Safety of Ashwagandha Root Extract in Subclinical Hypothyroid Patients: A Double-Blind Randomized Placebo-Controlled Trial
- A Randomized Double-Blind Placebo-Controlled Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha (Withania somnifera) in Aging Overweight Males – PMC
- Ayurvedic medicine and anaesthesia – PMC
- Choudhary, Dnyanraj, Sauvik Bhattacharyya, and Kedar Joshi. “Body weight management in adults under chronic stress through treatment with Ashwagandha root extract: a double-blind, randomized, placebo-controlled trial.” Journal of evidence-based complementary & alternative medicine 22.1 (2017): 96-106.
- An overview on ashwagandha: a Rasayana (rejuvenator) of Ayurveda