Ashwagandha Side Effects: What You Need to Know Before Taking It

When you hear ashwagandha, a traditional Ayurvedic herb used as an adaptogen to reduce stress and boost energy. Also known as Withania somnifera, it's one of the most popular herbal supplements in India and beyond. But just because it’s natural doesn’t mean it’s safe for everyone. adaptogens, a class of herbs that help the body manage stress like ashwagandha can interact with your hormones, thyroid, and even medications you’re already taking. Many people take it for better sleep or less anxiety, but they don’t check if it’s right for their body first.

Some users report mild side effects—upset stomach, drowsiness, or loose stools—but those are rare. The bigger concerns show up in people with existing conditions. If you have an overactive thyroid, ashwagandha might push your hormone levels too high. It can also lower blood sugar and blood pressure, which is dangerous if you’re on diabetes or blood pressure meds. Pregnant women should avoid it entirely—studies show it may trigger early contractions. And if you’re on immunosuppressants or have an autoimmune disease like rheumatoid arthritis or lupus, ashwagandha could make things worse by overstimulating your immune system.

It’s not just about what’s in the bottle. It’s about what’s in you. People with liver issues, kidney problems, or a history of hormone-sensitive cancers should talk to a doctor before trying it. Even healthy people might not realize how it interacts with other supplements they’re taking—like St. John’s Wort or green tea extract, both of which can also affect mood and energy. There’s no one-size-fits-all answer here. What helps one person feel calm might make another feel jittery or sick.

What you’ll find below are real stories, real data, and real warnings from people who’ve been there. We’ve pulled together articles that look at herbal side effects, thyroid risks, and how supplements like ashwagandha play out in Indian households where it’s commonly used. No fluff. No marketing. Just what you need to know before you swallow another pill.