PlainVitamins

Z Optima

by NutraKey · capsule · 120 capsules

  • On the market (NIH)
  • UPC 8 51090 00607 2
  • DSLD label 287426
  • Serving 2 to 3 capsules; amounts per 3 capsules
  • 40 servings

Z Optima by NutraKey lists 3 ingredients, 3 with an amount per serving of 3 capsules, such as 30 mg of zinc, 450 mg of magnesium and 10.5 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in Z Optima?

Each row as the label prints it, per serving of 3 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Z Optima: Supplement Facts rows against the market (DSLD label 287426, January 2026 release)
IngredientAmount% DVAmong products listing it
Zincas Zinc Aspartate, Zinc Monomethionine30 mg200%Zinc in Z Optima against 13,186 products30 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg30 mg

Higher than 90% of 13,186 products listing zinc (median 11 mg).

Magnesiumas Magnesium Aspartate450 mg113%Magnesium in Z Optima against 14,003 products450 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg450 mg

Higher than 95% of 14,003 products listing magnesium (median 86 mg). 1.3 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride10.5 mg525%Vitamin B6 in Z Optima against 15,277 products10.5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg10.5 mg

Higher than 65% of 15,277 products listing vitamin B6 (median 6 mg).

Source: NIH ODS Dietary Supplement Label Database, label 287426 (entered June 22, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 450 mg of magnesium, 1.3 times the adult Tolerable Upper Intake Level.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

  • ZmaPrecision Engineered · off the market same ingredients
  • ZMA Mineral Support FormulaGood 'N Natural · off the market same ingredients
  • ZmaScientific Nutrition For Advanced Conditioning SNAC · off the market same ingredients
  • ZMA With OptizincPrecision Engineered same ingredients
  • ZmaSci-Fit same ingredients
  • Max ZMAMM Sports Nutrition same ingredients

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
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
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.
Allergens and what it does not contain
Non GMO Gluten free Dye free Paraben free
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 287426.

What else is on the label?

Other ingredients: Gelatin.

How many labels does Z Optima have?

One label is on file, entered on June 22, 2023.

  1. Label 287426 (current) Entered June 22, 2023 · on the market · 120 capsules · UPC 8 51090 00607 2

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Nutrakey (manufacturer), Longwood, FL. All NutraKey products.

Where next?