Published by Paul Thompson |
Fact-checked against peer-reviewed sources | Updated March 2026

## Side-by-Side Comparison

| Magnesium | Zinc
--- | --- | ---
Category | Essential Minerals | Essential Minerals
Description | Involved in 300+ enzymatic reactions. Most adults are deficient. Critical for sleep, stress, muscle function, and heart health. | Essential mineral for immune function, testosterone, wound healing, and over 300 enzymatic reactions. Common deficiency especially in older adults.
Key Benefits | Sleep quality, Stress reduction, Muscle relaxation, Heart rhythm, Bone health | Immune support, Testosterone, Skin healing, Taste/smell, Antioxidant
Best For | Sleep, Stress, Muscle, Heart | Immune, Hormones, Skin, Anti-aging
Top Pick Price | $16.99 | $7.99

## Best Magnesium Products

Our top-rated Magnesium supplements based on purity, dosage, third-party testing, and value.

1NOW Magnesium Glycinate
Best for Sleep
Price: $16.99 Serving: 200mg per serving
★★★★☆ 9.4/10

Glycinate form is the most bioavailable and gentle on the stomach. Best choice for sleep and relaxation.

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2NOW Magnesium Citrate
Best Value
Price: $11.99 Serving: 200mg per serving
★★★★☆ 9.0/10

Citrate form with good absorption. Affordable daily magnesium from a trusted brand.

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3Life Extension Magnesium Caps
Most Complete
Price: $12.00 Serving: 500mg mixed forms
★★★★☆ 9.1/10

Blend of citrate, oxide, succinate, and TRAACS glycinate. Covers all bases.

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## Best Zinc Products

Our top-rated Zinc supplements based on purity, dosage, third-party testing, and value.

1NOW Zinc Picolinate 50mg
Editor's Choice
Price: $7.99 Serving: 50mg zinc picolinate
★★★★☆ 9.2/10

Picolinate is one of the most absorbable forms. Outstanding value from NOW Foods.

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2NOW Zinc Glycinate 30mg
Gentlest
Price: $9.99 Serving: 30mg chelated zinc
★★★★☆ 9.0/10

Chelated glycinate form is very gentle on the stomach. Better for daily long-term use.

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3Life Extension Zinc Caps 50mg
Best Value
Price: $7.50 Serving: 50mg OptiZinc
★★★★☆ 8.9/10

OptiZinc methionine form. Well-absorbed. From the longevity supplement pioneers.

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## Which Should You Choose?

### Magnesium vs Zinc — The Verdict

Both Magnesium and Zinc are valuable supplements with distinct mechanisms of action. The best choice depends on your individual health goals.

For heart health: Magnesium has demonstrated cardiovascular benefits in research studies.

For beginners: Start with whichever aligns more closely with your primary health goal. Both are well-researched and generally safe for most adults.

For advanced users: Many longevity researchers take both. They work through different mechanisms and can complement each other in a well-designed stack.

Pro Tip: Many longevity researchers combine both Magnesium and Zinc in their daily protocols. If budget allows, using both may provide complementary benefits.

### Related Questions

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