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ZMA With Theanine

product on market Capsule True Athlete Safety: 90/100
90/100

This product looks safe

  • Magnesium: 450mg is 1.3× the Tolerable Upper Intake Level (350mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Zinc, magnesium, and vitamin B6 are commonly used to support sleep quality and muscle recovery, though evidence for athletic performance gains is moderate. L-theanine is supported by research for promoting relaxation and reducing stress. Overall, these ingredients have a well-established safety profile for general use.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Magnesium: 450mg is 1.3× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for ZMA With Theanine
Open Full PDF View on NIH DSLD →
Details

Label Data

3 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

10.5 mg (618% DV)
8.1× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
450 mg (107% DV)
Exceeds UL by 1.3× (UL: 350 mg) 316 studies (A:8, B:159)
30 mg (273% DV)
2.7× RDA — within safe limits 263 studies (A:6, B:134)
50 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)

Other Ingredients

Gelatin Microcrystalline Cellulose Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take three (3) capsules daily for men and two (2) capsules daily for women, preferably on an empty stomach 30-60 minutes before bedtime. For best results, avoid taking with food or supplements containing calcium.

Warnings & Precautions

Warning: Consult your healthcare provider prior to use if you are pregnant, nursing, taking any medication or have any medical conditions.

Keep out of reach of children

Tamper evident Do not use if outer seal is broken or missing.

Formulation Notes

Does Not Contain: Yeast, corn, wheat, gluten, sugar, salt, soy, dairy, citrus, fish, preservatives, artificial colors or flavors.

Additional Information

Strength, power, recovery

NSF Certified for Sport

It’s a unique supplement formulated not only to help you build muscle strength, but also to help fight the effects of exercise-induced stress, and to promote rest and recovery.

ZMA: A precise combination of zinc and magnesium that may help increase muscle strength and power Vitamin B6: Enhances the absorption and utilization of zinc and magnesium Theanine: Promotes recovery, relaxation and restful sleep

www.true-athlete.com

Store in a cool, dry place

Visit www.vitaminshoppe.com or call 1-800-223-1216 for more information and to reorder.

Item No. VS-6021 1774454 CR 37

Metadata

Product Details

UPC / SKU7 66536 06021 4
DSLD Entry Date2017-12-22
Product TypeOther Combinations
FormCapsule
BrandTrue Athlete
DSLD ID81263
Data Updated2026-04-11
Research

Research Evidence

37
Research Sources
53
Avg Quality
22
Rct
10
Systematic Review
3
Meta Analysis
1
Clinical Trial
1
Openfda Safety
B Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials
Systematic Review Nutritional neuroscience 2026 PubMed DOI
B The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
Meta Analysis Sleep medicine reviews 2025 PubMed DOI
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010 PubMed DOI
B Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
Rct Nutrients 2019 PubMed DOI
B The Role of Supplements and Over-the-Counter Products to Improve Sleep in Children: A Systematic Review
Systematic Review International journal of molecular sciences 2023 PubMed DOI
B Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Meta Analysis Nutrition reviews 2025 PubMed DOI
B Effect of Alpha-S1-Casein Tryptic Hydrolysate and L-Theanine on Poor Sleep Quality: A Double Blind, Randomized Placebo-Controlled Crossover Trial
Rct Nutrients 2022 PubMed DOI
B Effect of L-theanine on selective attention in a traffic-related reaction task in sleep-deprived young adults: a double-blind placebo-controlled, crossover study
Rct Nutritional neuroscience 2025 PubMed DOI
B The combined effects of L-theanine and caffeine on cognitive performance and mood
Rct Nutritional neuroscience 2008 PubMed DOI
B Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2014 PubMed DOI
View all evidence for L Theanine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.