PlainVitamins

Zma

by Nature's Craft · capsule · 90 capsules

  • On the market (NIH)
  • DSLD label 296793
  • Serving 3 capsules
  • 30 servings

Zma by Nature's Craft lists 6 ingredients, 6 with an amount per serving of 3 capsules, such as 10.5 mg of vitamin B6, 450 mg of magnesium, 30 mg of zinc and 50 mg of 5-hydroxytryptophan. Its current label entered the NIH Dietary Supplement Label Database on December 14, 2023.

What is in Zma?

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).

Zma: Supplement Facts rows against the market (DSLD label 296793, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride10.5 mg618%Vitamin B6 in ZMA 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).

Magnesiumas Magnesium Aspartate, Magnesium Oxide450 mg107%Magnesium in ZMA 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.

Zincas Zinc Aspartate, Zinc Mono-L-Methionine Sulfate, Zinc Oxide30 mg273%Zinc in ZMA 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).

5-Hydroxytryptophanas Griffonia simplicifolia Seed Extract50 mg5-HTP in ZMA against 676 products50 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.50 mg

55% of 676 products listing 5-HTP give more (median 100 mg).

Bioperineas Black Pepper Fruit Extract5 mgBlack Pepper in ZMA against 2,363 products5 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.5 mg

33% of 2,363 products listing black pepper give more (median 5 mg).

Piperine4.75 mgPiperine in ZMA against 203 products4.75 mg per serving; the middle half of products list 4.75 mg to 10 mg, the median 5 mg.4.75 mg

74% of 203 products listing piperine give more (median 5 mg).

Source: NIH ODS Dietary Supplement Label Database, label 296793 (entered December 14, 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?

The products whose ingredient lists overlap most with Zma's, rare ingredients counting for more.

  • Zma-5SNAC Nutrition 5 shared, 64% alike
  • ZMA Nightcap Apple BerrySNAC Nutrition 5 shared, 51% alike
  • SerotoninHelpHerbs SRA 4 shared, 49% alike
  • 5-HTP 100 mgEveryday Health 4 shared, 48% alike
  • Zma-5Scientific Nutrition For Advanced Conditioning SNAC · off the market 4 shared, 48% alike
  • Zma JymJYM Supplement Science · off the market 4 shared, 47% alike

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
Suggested use: 3 capsules taken with fruit juice daily, before or after exercise, or as directed by a healthcare professional. It may be advisable to take this product in cycles: 4 to 6 weeks on, then 4 to 6 weeks off. For best results, avoid taking with dairy or calcium-containing foods or supplements.
Warnings
Caution: do not exceed recommended dose. This product is not intended for pregnant or nursing mothers or children under the age of 18.
Maintain sufficient fluid intake while taking this product. If you have a known medical condition and have questions about the advisability of taking this product, consult your physician prior to use.
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 296793.

What else is on the label?

Other ingredients: Gelatin, Rice Flour, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the USA with global ingredients Sourced from a GMP certified facility 3rd Party Lab Verified.

How many labels does Zma have?

One label is on file, entered on December 14, 2023.

  1. Label 296793 (current) Entered December 14, 2023 · on the market · 90 capsules

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

Who makes it?

The label names Nature's Craft (distributor), Pomona, NY. All Nature's Craft products.

Where next?