Most reported effects are mild and temporary, often linked to the digestive system or how the body processes the herb.
- Stomach discomfort: This includes feelings of upset stomach, nausea, loose stools, or occasional diarrhea. Larger amounts may irritate the intestinal lining in some individuals.
- Drowsiness or fatigue: Some notice increased sleepiness, especially when combined with other calming routines or at higher doses.
- Headaches or mild dizziness: These can appear early on and often fade as the body adjusts.
These sensations usually resolve on their own or with simple adjustments, but they can feel frustrating when you’re expecting smoother days.
Quick list of frequently mentioned mild effects:
- Upset stomach or bloating
- Nausea or vomiting (less common)
- Loose stools or diarrhea
- Drowsiness
- Headache
If these linger or feel bothersome, it’s worth pausing and reassessing your approach.
When Ashwagandha Might Influence Thyroid or Heart-Related Feelings
Because ashwagandha can affect thyroid hormone levels in some people, it may lead to sensations like a faster heartbeat, restlessness, or changes in energy that feel counterproductive to stress relief. Studies have noted occasional increases in thyroid activity, which is why those with existing thyroid concerns are often advised to check with a healthcare provider first.
In rarer cases, people describe symptoms that overlap with what feels like heightened stress—such as palpitations or unexpected anxiety-like feelings—potentially tied to hormonal shifts rather than the herb “failing.”
Heart-related sensations, while uncommon, have been reported alongside gastrointestinal effects in some accounts. Monitoring how your body responds in the first few weeks is key.
The Liver and Longer-Term Considerations
While most people experience no issues, there have been reports of liver-related changes associated with ashwagandha use, particularly with prolonged or higher-dose intake. Symptoms like persistent fatigue, abdominal discomfort, itching, or yellowing of the skin or eyes warrant immediate attention and stopping use.
Clinical observations indicate these cases are uncommon but highlight the importance of not exceeding recommended amounts and limiting continuous use. Many experts suggest keeping supplementation to shorter periods (often 8–12 weeks) before taking a break to evaluate how you feel.
Signs that may suggest it’s time to pause and consult a professional:
- Ongoing digestive upset that doesn’t improve
- Unusual fatigue or changes in energy levels
- Skin changes, itching, or dark urine
- Any new or worsening symptoms that concern you
