Tested Nutrition ZN-Mg-B6 (ZMA) is a recovery-focused mineral supplement designed to support muscle recovery, sleep quality, hormone health, and overall athletic performance.

This formula combines three essential nutrients — zinc, magnesium, and vitamin B6 — which play critical roles in muscle repair, nervous system function, and hormone regulation. ZMA supplements are commonly used by athletes and gym-goers looking to improve recovery, sleep, and training performance.

When taken before bed, ZMA may help support restful sleep and overnight muscle recovery, making it a popular supplement for people training frequently or experiencing heavy training loads.

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Who ZN-Mg-B6 (ZMA) Is For

Athletes and gym-goers

Supports muscle recovery, electrolyte balance, and performance after intense workouts.

People struggling with sleep quality

Magnesium helps support relaxation and healthy sleep patterns.

Individuals with mineral deficiencies

Zinc and magnesium deficiencies are common in active individuals and can affect energy levels and recovery.

People training frequently

Regular training increases the body’s need for key minerals involved in muscle function and recovery.

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Key Benefits of Tested Nutrition ZN-Mg-B6

✔ Supports muscle recovery and repair
✔ Helps promote restful sleep and relaxation
✔ Supports normal testosterone production in men
✔ Helps maintain healthy immune function
✔ Provides key minerals lost during intense exercise
✔ Convenient capsule format

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When to Take ZMA

Take 30–60 minutes before bedtime, preferably on an empty stomach.

Avoid taking ZMA at the same time as calcium-rich foods or supplements, which may interfere with absorption.

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Why Zinc, Magnesium & Vitamin B6 Matter

Zinc

Supports immune function, hormone production, and protein synthesis.

Magnesium

Helps regulate muscle contractions, nervous system function, and sleep quality.

Vitamin B6

Supports amino acid metabolism, neurotransmitter production, and energy metabolism.

Together, these nutrients help support recovery, sleep, and overall athletic performance.

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Common Customer Questions

What is ZMA used for?

ZMA supplements are commonly used to support muscle recovery, sleep quality, and mineral balance, particularly in athletes.

Does ZMA increase testosterone?

ZMA does not directly increase testosterone beyond normal levels, but it may help support normal hormone production in individuals with zinc deficiency.

Can women take ZMA?

Yes. Women can benefit from the sleep and recovery support provided by magnesium and zinc.

Can I take ZMA with a multivitamin?

Yes, but ensure your total intake of zinc and magnesium stays within recommended ranges.