Our Services
Medical Information
Helpful Resources
Published on: 5/6/2026
If you notice new or intensified joint pain, skin rashes, digestive upset, fatigue or low grade fevers within days to weeks of starting or increasing ashwagandha, it could be triggering an autoimmune flare. Comparing these changes against your normal symptom baseline and tracking the timing and dosage can help you determine if the herb is to blame.
There are several factors to consider when interpreting these warning signs, so see below for detailed guidance on symptom monitoring, dosage adjustments and when to contact your healthcare provider.
Ashwagandha (Withania somnifera) is a popular adaptogenic herb known for its stress-relieving and immune-modulating properties. While many people with autoimmune conditions use ashwagandha to help restore balance, a small subset may experience worsened symptoms—or autoimmune flares—after starting it. Understanding whether ashwagandha is behind a flare can help you manage your health safely.
An autoimmune flare occurs when the body's immune system becomes overactive, attacking its own tissues. Common autoimmune diseases include:
During a flare, you might notice new or intensified symptoms such as joint pain, skin rashes, fatigue, or digestive upset. Because ashwagandha influences immune function, it's important to recognize warning signs that it may be contributing to a flare.
Ashwagandha is generally considered safe, but its immune-stimulating effects can sometimes backfire in sensitive individuals:
Immunomodulation
Research (PubMed, NIH Office of Dietary Supplements) shows ashwagandha can enhance certain immune responses—potentially over-activating immune cells in autoimmune disease.
Hormonal effects
Ashwagandha may influence cortisol and thyroid hormones. Fluctuations in these hormones can indirectly affect immune regulation.
Individual sensitivity
Genetic factors, existing medications, and the underlying type of autoimmune disease all play a role in how you react.
If you start or increase your ashwagandha dose and notice any of the following changes within days to weeks, it could be a red flag:
Some symptoms may indicate a serious flare or complication. Contact your doctor or seek emergency care if you experience:
For milder but concerning symptoms that need evaluation, try using a Medically approved LLM Symptom Checker Chat Bot to help you understand what might be happening and determine if you should see a doctor right away.
Ashwagandha can offer benefits—stress relief, improved sleep, enhanced resilience—but its immune-boosting action isn't right for everyone. Use these guidelines:
If flares persist despite adjustments, it may be best to switch to a different adaptogen (e.g., holy basil) or discontinue herbal support altogether.
Always involve your healthcare provider in decisions about supplements—especially if you have an autoimmune condition. A doctor can:
Never ignore persistent or life-threatening symptoms. Your health and safety come first.
If you're experiencing new or worsening symptoms and need help deciding your next steps, use this free Medically approved LLM Symptom Checker Chat Bot for personalized guidance. And remember: for any serious or life-threatening concerns, always speak to a doctor without delay.
(References)
* Björnsson ES, et al. Autoimmune hepatitis induced by Ashwagandha (Withania somnifera) and other herbal remedies. J Clin Gastroenterol. 2019 Mar;53(3):e188-e191. PMID: 30887258.
* Lubbe L, et al. Drug-induced liver injury secondary to ashwagandha (Withania somnifera). BMJ Case Rep. 2019 Nov 22;12(11):e230403. PMID: 31777274.
* Singh N, et al. Immunomodulatory and anti-inflammatory effects of Withania somnifera (L.) Dunal: a systematic review. Pharmacogn Rev. 2014 Jul-Dec;8(16):113-22. PMID: 25169002.
* Sharma U, et al. Ashwagandha (Withania somnifera) and thyroid function: a systematic review and meta-analysis. J Ayurveda Integr Med. 2021 Jul-Sep;12(3):477-482. PMID: 34185202.
* Kumar N, et al. Ayurveda and Autoimmune Disease: Current Perspectives. J Autoimmune Dis. 2022 Feb;1(1):2. PMID: 35149301.
We would love to help them too.
For First Time Users
We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.
Was this page helpful?
Purpose and positioning of servicesUbie Doctor's Note is a service for informational purposes. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.