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Non-nutrient/non-botanical · Supplement ingredient

Magnesium

Magnesium is listed on 27,686 U.S. supplement product labels in the NIH DSLD, #3 of 4,614 by label frequency.

27,686
Products
#3 of 4,614
By frequency
NIH
Dosing fact sheet
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Magnesium dosing reference

NIH ODS Fact Sheet →
Recommended Dietary Allowance (RDA / AI)
400–420 mg for adult men, 310–320 mg for adult women
Tolerable Upper Intake Level (UL)
350 mg from supplements only (no UL on dietary intake) for adults
Drug interactions
Reduces absorption of bisphosphonates, quinolone and tetracycline antibiotics. May enhance effect of muscle relaxants.
Pregnancy & lactation
RDA during pregnancy is 350–360 mg; lactation 310–320 mg.

Statement required by FDA: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Source: https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/

How common is Magnesium?

Number of supplement labels listing Magnesium vs nearby non-nutrient/non-botanical ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing Magnesium

Ultra Ginkgo!
Enzymatic Therapy
5 ingredients · Botanical
On Market
Ultra Hair Plus with MSM
NaturesPlus
29 ingredients · Other Combinations
On Market
Ultra Hardy-Strain Probiotic
Swanson
10 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra I Daily Iron-Free
NaturesPlus
46 ingredients · Other Combinations
On Market
Ultra II Daily Sustained Release
NaturesPlus
69 ingredients · Other Combinations
On Market
Ultra II Daily Sustained Release
NaturesPlus
66 ingredients · Other Combinations
On Market
Ultra Immunity Booster
CATALO
25 ingredients · Botanical with Nutrients
On Market
Ultra Inf-Zyme Forte
AB American Biologics
15 ingredients · Other Combinations
On Market
Ultra K-2 +MK-7 Complex 800 mcg plus D3 5,000 IU
Nature's Truth
7 ingredients · Vitamin
On Market
Ultra Magnesium Complex
LiveGood
2 ingredients · Mineral
On Market
Ultra Man 50 Plus
Puritan's Pride
69 ingredients · Other Combinations
On Market
Ultra Man Max
Puritan's Pride
49 ingredients · Other Combinations
On Market
Ultra Man Max Daily Multi
Vitamin World
47 ingredients · Other Combinations
On Market
Ultra Man Max Daily Multi
Vitamin World
46 ingredients · Other Combinations
On Market
Ultra Max Cayenne 40,000 H.U. plus Ginger Root
Nature's Truth
6 ingredients · Botanical
On Market
Ultra Mega Citrus
GNC Women's Ultra Mega
54 ingredients · Other Combinations
On Market
Ultra Mega Duo Dophilus
Earth Wise Vitamins & Supplements
16 ingredients · Other Combinations
On Market
Ultra Mega Duo Dophilus
Earth Wise Vitamins & Supplements
16 ingredients · Other Combinations
On Market
Ultra Mega Multivitamin
GNC Women's
82 ingredients · Other Combinations
On Market
Ultra Minerals
Vitabase
24 ingredients · Other Combinations
On Market
Ultra Minerals For Life
AB American Biologics
20 ingredients · Other Combinations
On Market
Ultra Multi Plus
Natural Factors
35 ingredients · Other Combinations
On Market
Ultra One Daily Iron Free
NaturesPlus
30 ingredients · Other Combinations
On Market
Ultra Potent Tart Cherry Extract Capsules
tnvitamins
5 ingredients · Botanical
On Market
Ultra Premium Whey Protein Powder Chocolate
Precision Engineered
33 ingredients · Amino acid/Protein
On Market
Ultra Prenatal
NaturesPlus
35 ingredients · Other Combinations
On Market
Ultra Preventive 2000 Series C.V. Support Pack
Douglas Laboratories
65 ingredients · Botanical with Nutrients
On Market
Ultra Preventive 2000 Series Nutri-Smart Pack
Douglas Laboratories
66 ingredients · Other Combinations
On Market
Ultra Preventive Beta With Copper
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Preventive Beta With Copper & Iron
Douglas Laboratories
37 ingredients · Other Combinations
On Market
Ultra Preventive D
Douglas Laboratories
35 ingredients · Other Combinations
On Market
Ultra Preventive D With Copper
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Preventive D With Copper & Iron
Douglas Laboratories
37 ingredients · Other Combinations
On Market
Ultra Preventive III A Low Allergenicity
Douglas Laboratories
35 ingredients · Other Combinations
On Market
Ultra Preventive III Capsules
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Preventive III Capsules with Copper
Douglas Laboratories
37 ingredients · Other Combinations
On Market
Ultra Preventive III Low Allergenicity
Douglas Laboratories
35 ingredients · Other Combinations
On Market
Ultra Preventive III Powder
Douglas Laboratories
32 ingredients · Other Combinations
On Market
Ultra Preventive III Powder
Douglas Laboratories
32 ingredients · Other Combinations
On Market
Ultra Preventive III With Copper
Douglas Laboratories
36 ingredients · Botanical with Nutrients
On Market
Ultra Preventive III With Copper & Iron
Douglas Laboratories
37 ingredients · Botanical with Nutrients
On Market
Ultra Preventive III with Iron
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Preventive III with Iron
Douglas Laboratories
36 ingredients · Botanical with Nutrients
On Market
Ultra Preventive III With Zinc Picolinate
Douglas Laboratories
35 ingredients · Botanical with Nutrients
On Market
Ultra Preventive III With Zinc Picolinate
Douglas Laboratories
36 ingredients · Botanical with Nutrients
On Market
Ultra Preventive IX
Douglas Laboratories
69 ingredients · Other Combinations
On Market
Ultra Preventive IX
Douglas Laboratories
64 ingredients · Botanical with Nutrients
On Market
Ultra Preventive IX
Douglas Laboratories
64 ingredients · Other Combinations
On Market
Ultra Preventive IX With Vitamin K
Douglas Laboratories
65 ingredients · Other Combinations
On Market
Ultra Preventive IX With Vitamin K
Douglas Laboratories
65 ingredients · Other Combinations
On Market

Nearby Ingredients in Non-nutrient/non-botanical

Other ingredients in the Non-nutrient/non-botanical category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Magnesium vs Citric Acid →

Nationwide ingredients with similar DSLD presence

Two peer sets for Magnesium: closest on total DSLD label listings (27,686 here) and closest on distinct brands that list it (2,255 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about Magnesium

What is the Recommended Dietary Allowance (RDA) for Magnesium?
400–420 mg for adult men, 310–320 mg for adult women. The RDA is the average daily intake sufficient to meet the nutrient requirements of nearly all (97–98%) healthy people. Source: NIH Office of Dietary Supplements.
Is there an upper limit for Magnesium?
350 mg from supplements only (no UL on dietary intake) for adults (Tolerable Upper Intake Level, UL, the maximum daily intake unlikely to cause adverse health effects in the general population).
Does Magnesium interact with medications?
Reduces absorption of bisphosphonates, quinolone and tetracycline antibiotics. May enhance effect of muscle relaxants. This is a partial list, always discuss supplement use with a pharmacist or prescribing provider.
What about Magnesium during pregnancy or breastfeeding?
RDA during pregnancy is 350–360 mg; lactation 310–320 mg.
How many supplement products contain Magnesium?
27,686 supplement product labels in the NIH DSLD currently lists Magnesium as an ingredient. By label frequency it ranks #3 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) · Dosing reference: NIH ODS Magnesium Health Professional Fact Sheet. Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.