Study
Milk Thistle Use Raises Concerns About Blood Clot Risk in Adults
Milk thistle supplements may increase the risk of blood clots due to their estrogen-like effects.
Summary
In plain language
Researchers have found that using milk thistle, a common herbal supplement, could increase the risk of blood clots. Milk thistle contains a compound called silibinin, which may mimic estrogen's effects in the body, potentially influencing how blood clots form. This finding is particularly important for seniors, as blood clots can lead to serious health issues like deep vein thrombosis (DVT). The study highlights the need for seniors to be cautious when using milk thistle, especially if they have underlying health conditions or are taking blood-thinning medications. It's essential to talk with healthcare providers before starting any new supplements.
Details
Use the full description to understand the study design, methods, and the limits of the findings.
This study examined the potential link between milk thistle supplements and increased blood clot risk. Researchers focused on silibinin, a component of milk thistle, which may interact with estrogen receptors in the body, affecting clotting pathways.
- The study involved a case where a patient developed a deep vein thrombosis (DVT) after using milk thistle, suggesting a possible connection.
- While milk thistle is known for its liver-supporting properties, its estrogen-like effects could pose risks for blood clot formation.
- Further research is needed to fully understand the implications, but seniors should be cautious with milk thistle, especially if on blood thinners like warfarin.
Discuss with your healthcare provider before taking milk thistle to ensure it's safe for you.
Full Study
Open the original publication for the complete methods, outcomes, and source material.
Milk Thistle Use Raises Concerns About Blood Clot Risk in Adults
Published January 2025 · DOI 10.1016/j.jaccas.2025.104999
Opens at the publisher · external site · may require institutional access
Research Quality Score
Scored May 10, 2026 using rubric v9_2026-04-08.
Assessment
The study is a case report, which is a low level of evidence due to its anecdotal nature and lack of controls. It does not provide statistical analysis or transparency in methodology. The relevance to seniors is low as the subject is a 41-year-old male. The journal is reputable but not top-tier.
Category Breakdown
| Category | Score | Rating |
|---|---|---|
| Study design | 3.3/10 | |
| Bias control | 0.0/10 | |
| Statistical methods | 0.0/10 | |
| Reporting completeness | 0.0/10 | |
| Conflicts & funding | 5.0/10 | |
| Replication | 0.0/10 | |
| Relevance to chosen population | 0.0/10 | |
| Journal Reliability | 5.0/10 |
Additional Notes
The study raises an interesting hypothesis about milk thistle and thrombosis risk, but further research with robust methodology is needed to draw reliable conclusions.
Treatments Evaluated in This Research
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Supplements
Supplements help fill nutritional gaps and support healthy aging. For seniors, vitamins, minerals, and omega-3s can enhance bone strength, heart health, energy, and immune function when used safely under professional guidance.
Milk Thistle (Silybum marianum)
Milk thistle supports liver function, detoxification, and antioxidant regeneration, helping protect cells from oxidative stress.
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