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Milk Thistle 80% Silymarin vs Vitamin B12 — Which Should You Take?

Milk Thistle 80% Silymarin

herbs

Typically £8–£25/month

Vitamin B12

vitamins

Typically £8–£25/month
Feature
Milk Thistle 80% Silymarin
Vitamin B12
Typical Dosage
150-300 mg silymarin daily (equivalent to 200-375 mg of 80% extract)
500-1,000mcg daily
Best Form
Capsules/Tablets
Methylcobalamin
Key Benefits
5 listed
5 listed
Evidence Rating
★★★★
★★★★
Best Time
With meals to enhance absorption
Morning — may be energising
Upper Limit
600 mg silymarin daily
No established upper limit (water-soluble)
Side Effects
4 noted
2 noted

Milk Thistle 80% Silymarin Benefits

Liver function support
Hepatic detoxification
Antioxidant protection
Bile production stimulation
Anti-inflammatory effects

Vitamin B12 Benefits

Energy production
Nerve function and protection
Red blood cell formation
DNA synthesis
May reduce homocysteine levels

Milk Thistle 80% Silymarin Side Effects

Mild gastrointestinal disturbance
Allergic reactions (rare, especially in Asteraceae-sensitive individuals)
Headache
Loose stools

Vitamin B12 Side Effects

Very safe — excess excreted in urine
Rare: acne at very high doses in some individuals

Can You Take Milk Thistle 80% Silymarin and Vitamin B12 Together?

In most cases, Milk Thistle 80% Silymarin and Vitamin B12 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 80% Silymarin: May inhibit cytochrome P450 enzymes, affecting medication metabolism

Milk Thistle 80% Silymarin: Potential interaction with oestrogen-dependent cancers

Vitamin B12: Metformin reduces B12 absorption — supplement if on metformin

Vitamin B12: Proton pump inhibitors (PPIs) reduce absorption

Which Should You Choose?

Choose Milk Thistle 80% Silymarin if your primary goal is: liver function support. Choose Vitamin B12 if your primary goal is: energy production.

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Frequently Asked Questions

Is Milk Thistle 80% Silymarin better than Vitamin B12?

It depends on your goals. Milk Thistle 80% Silymarin and Vitamin B12 serve different purposes and are often taken together.

Can I take Milk Thistle 80% Silymarin and Vitamin B12 together?

In most cases, yes. Milk Thistle 80% Silymarin and Vitamin B12 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 80% Silymarin?

With meals to enhance absorption

What is the best time to take Vitamin B12?

Morning — may be energising

What are the side effects of Milk Thistle 80% Silymarin?

Mild gastrointestinal disturbance. Allergic reactions (rare, especially in Asteraceae-sensitive individuals). Headache. Loose stools.

What are the side effects of Vitamin B12?

Very safe — excess excreted in urine. Rare: acne at very high doses in some individuals.

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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