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Milk Thistle vs Ashwagandha (KSM-66) — Which Should You Take?

Milk Thistle

herbs

Typically £8–£25/month

Ashwagandha (KSM-66)

adaptogens

Typically £8–£25/month
Feature
Milk Thistle
Ashwagandha (KSM-66)
Typical Dosage
150-300 mg silymarin daily
300-600mg daily (KSM-66 extract)
Best Form
standardised extract
KSM-66
Key Benefits
5 listed
5 listed
Evidence Rating
★★★★★
★★★★
Best Time
with meals for better absorption
Evening for sleep, or split morning/evening for stress
Upper Limit
600 mg daily
1,200mg daily
Side Effects
4 noted
4 noted

Milk Thistle Benefits

liver support
antioxidant activity
bile production
detoxification support
anti-inflammatory properties

Ashwagandha (KSM-66) Benefits

Reduces cortisol and perceived stress
Improves sleep quality
May increase testosterone in men
Anxiety reduction
Physical performance enhancement

Milk Thistle Side Effects

mild gastrointestinal upset
allergic reactions (rare)
headache
loss of appetite

Ashwagandha (KSM-66) Side Effects

Drowsiness (dose-dependent)
May worsen thyroid conditions (can increase thyroid hormones)
Mild digestive upset in some people
Not recommended during pregnancy

Can You Take Milk Thistle and Ashwagandha (KSM-66) Together?

In most cases, Milk Thistle and Ashwagandha (KSM-66) can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication or have existing health conditions.

Milk Thistle: may interact with drugs metabolised by CYP3A4

Milk Thistle: potential interaction with statins

Ashwagandha (KSM-66): Thyroid medications — may increase thyroid hormone levels

Ashwagandha (KSM-66): Sedatives — additive drowsiness

Which Should You Choose?

Choose Milk Thistle if your primary goal is: liver support. Choose Ashwagandha (KSM-66) if your primary goal is: reduces cortisol and perceived stress.

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Frequently Asked Questions

Is Milk Thistle better than Ashwagandha (KSM-66)?

It depends on your goals. Milk Thistle and Ashwagandha (KSM-66) serve different purposes and are often taken together.

Can I take Milk Thistle and Ashwagandha (KSM-66) together?

In most cases, yes. Milk Thistle and Ashwagandha (KSM-66) can be taken together safely. However, always check for specific interactions and consult a healthcare professional if you take medication.

What is the best time to take Milk Thistle?

with meals for better absorption

What is the best time to take Ashwagandha (KSM-66)?

Evening for sleep, or split morning/evening for stress

What are the side effects of Milk Thistle?

mild gastrointestinal upset. allergic reactions (rare). headache. loss of appetite.

What are the side effects of Ashwagandha (KSM-66)?

Drowsiness (dose-dependent). May worsen thyroid conditions (can increase thyroid hormones). Mild digestive upset in some people. Not recommended during pregnancy.

How We Compare Supplements

This comparison is based on published clinical research, peer-reviewed studies from PubMed, and established nutritional science. We evaluate dosages based on clinically-effective amounts, not manufacturer recommendations. Benefits listed have at least moderate evidence from human studies. When evidence is limited or conflicting, we note this.

Disclaimer: This comparison is for educational purposes only and is not medical advice. Always consult a qualified healthcare professional before starting any supplement, especially if you take medication or have existing health conditions.

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