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Z Optima

product on market Capsule NutraKey Safety: 87/100
87/100

This product is generally 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 muscle function and metabolic health. There is moderate evidence suggesting this combination may assist with sleep quality and recovery. However, overall evidence coverage for this specific formulation is limited.

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 Z Optima
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
40
Servings
Other Combinations
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

30 mg (200% DV)
2.7× RDA — within safe limits 263 studies (A:6, B:134)
450 mg (113% DV)
Exceeds UL by 1.3× (UL: 350 mg) 316 studies (A:8, B:159)
10.5 mg (525% DV)
8.1× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)

Other Ingredients

Gelatin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

For best results: Combine with Nutrakey's melatonin to enhance deep, restful sleep, and improve natural sleep cycles.

Recommended Use: Men take 3, women take 2 capsules daily, preferably on an empty stomach 30-60 minutes before bedtime. For best results, avoid taking within 1 hour of consuming dairy or other calcium containing foods or supplements.

Warnings & Precautions

Warning: Pregnant or lactating women, diabetics, hypoglycemics, and people with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking dietary supplements.

Do not use if seal is broken.

Do not use if packaging has been tampered with.

Formulation Notes

450 mg magnesium

Recovery and restful deep sleep Restorative mineral support Z Optima's formula has been shown to increase muscle strength and boost anabolic response when used in conjunction with weight training in athletes with common nutritional deficiencies. Improve sleep quality The ingredients in Z Optima have been shown to support natural deep sleep cycles, with less waking episodes. Improved sleep quality further supports maximizing: Recovery Growth Regeneration

Recovery aid Restorative mineral support Enhance recovery Promote sleep Restful sleep Support recovery Stimulate growth

Non GMO Gluten free Dye free Paraben free

Additional Information

Follow for free giveaways

Store in a cool, dry place.

Packaging is BPA (Bisphenol A) free.

BPA free

Metadata

Product Details

UPC / SKU8 51090 00607 2
DSLD Entry Date2023-06-22
Product TypeOther Combinations
FormCapsule
DSLD ID287426
Data Updated2026-04-11
Research

Research Evidence

397
Research Sources
55
Avg Quality
200
Meta Analysis
68
Rct
58
Systematic Review
53
Clinical Trial
9
Cochrane Review
2
Narrative Review
2
Regulatory Source
1
Observational
1
Other
1
Openfda Safety
A Zinc supplementation for improving pregnancy and infant outcome
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years
Narrative Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Oral zinc for treating diarrhoea in children
Meta Analysis The Cochrane database of systematic reviews 2016 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ open 2021 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2010 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Compression bandages or stockings versus no compression for treating venous leg ulcers
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for mental and motor development in children
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Zinc for the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
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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.