SP
StackPedia
All Comparisons

Green Tea Extract vs Magnesium — Which Should You Take?

Green Tea Extract

herbs

Typically £8–£25/month

Magnesium

minerals

Typically £8–£25/month
Feature
Green Tea Extract
Magnesium
Typical Dosage
300–400 mg daily
200-400mg elemental magnesium daily
Best Form
Standardised extract (EGCG)
Magnesium Glycinate
Key Benefits
5 listed
5 listed
Evidence Rating
★★★★
★★★★★
Best Time
With meals to enhance absorption and reduce gastric irritation
Evening for sleep benefits, split doses for absorption
Upper Limit
800 mg daily
800mg daily
Side Effects
4 noted
3 noted

Green Tea Extract Benefits

Antioxidant support
Metabolic function
Cognitive performance
Cardiovascular health
Thermogenesis

Magnesium Benefits

Sleep quality improvement
Muscle relaxation and cramp prevention
Stress and anxiety reduction
Blood pressure regulation
Energy production

Green Tea Extract Side Effects

Nausea or gastric upset on an empty stomach
Dizziness or headaches at high doses
Sleep disruption due to caffeine content
Liver toxicity with excessive prolonged use

Magnesium Side Effects

Loose stools (especially citrate/oxide forms)
Rare: low blood pressure at very high doses
Generally very safe

Can You Take Green Tea Extract and Magnesium Together?

In most cases, Green Tea Extract and Magnesium 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.

Green Tea Extract: Iron absorption may be reduced; separate dosing by 2+ hours

Green Tea Extract: May potentiate effects of anticoagulants and antiplatelet medications

Magnesium: May reduce absorption of antibiotics (tetracyclines, quinolones)

Magnesium: Can interact with blood pressure medications

Which Should You Choose?

Choose Green Tea Extract if your primary goal is: antioxidant support. Choose Magnesium if your primary goal is: sleep quality improvement.

Affiliate links — we may earn a small commission at no extra cost to you.

Frequently Asked Questions

Is Green Tea Extract better than Magnesium?

It depends on your goals. Green Tea Extract and Magnesium serve different purposes and are often taken together.

Can I take Green Tea Extract and Magnesium together?

In most cases, yes. Green Tea Extract and Magnesium 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 Green Tea Extract?

With meals to enhance absorption and reduce gastric irritation

What is the best time to take Magnesium?

Evening for sleep benefits, split doses for absorption

What are the side effects of Green Tea Extract?

Nausea or gastric upset on an empty stomach. Dizziness or headaches at high doses. Sleep disruption due to caffeine content. Liver toxicity with excessive prolonged use.

What are the side effects of Magnesium?

Loose stools (especially citrate/oxide forms). Rare: low blood pressure at very high doses. Generally very safe.

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.

Related Comparisons

Popular Supplements on Amazon

As an Amazon Associate we may earn from qualifying purchases.