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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 Woman Max
Puritan's Pride
62 ingredients · Other Combinations
On Market
Ultra Woman Sport
Vitamin World
58 ingredients · Other Combinations
On Market
Ultra-AM Capsules
Douglas Laboratories
33 ingredients · Other Combinations
On Market
Ultra-AM Capsules
Douglas Laboratories
35 ingredients · Other Combinations
On Market
Ultra-C 2000 mg Sustained Release
NaturesPlus
9 ingredients · Botanical with Nutrients
On Market
Ultra-C 2000 mg Sustained Release
NaturesPlus
9 ingredients · Botanical with Nutrients
On Market
Ultra-Cal Night
Source Naturals
23 ingredients · Botanical with Nutrients
On Market
Ultra-Cal Night
Source Naturals
23 ingredients · Botanical with Nutrients
On Market
Ultra-Cal Night
Source Naturals
23 ingredients · Botanical with Nutrients
On Market
Ultra-Cal Night With Vitamin K
Source Naturals
24 ingredients · Botanical with Nutrients
On Market
Ultra-Carnitine 300 Milligrams
Montiff
5 ingredients · Amino acid/Protein
On Market
Ultra-Cee 500 mg Timed Release
Puritan's Pride
6 ingredients · Vitamin
On Market
Ultra-PM Capsules
Douglas Laboratories
34 ingredients · Other Combinations
On Market
Ultra-Pro Carob
Douglas Laboratories
99 ingredients · Other Combinations
On Market
Ultra-Pro Vanilla
Douglas Laboratories
97 ingredients · Other Combinations
On Market
Ultra-Pro Vanilla
Douglas Laboratories
97 ingredients · Other Combinations
On Market
Ultra-Pure Calcium
Purity Products
12 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Ultra-Resveratrol 150 mg
Swiss BioEnergetics
7 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra-Stress Sustained Release
NaturesPlus
23 ingredients · Other Combinations
On Market
UltraBalance Protein
Metagenics
38 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
UltraBiotic 100
HoltraCeuticals
11 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraCleanse Plus
Akasha Naturals
50 ingredients · Botanical with Nutrients
On Market
UltraClear Macro
Metagenics
32 ingredients · Amino acid/Protein
On Market
UltraClear Plus Natural Berry Flavor
Metagenics
49 ingredients · Botanical with Nutrients
On Market
UltraClear Plus pH Vanilla Flavor
Metagenics
50 ingredients · Botanical with Nutrients
On Market
UltraClear Plus pineapple banana flavor
Metagenics
47 ingredients · Botanical with Nutrients
On Market
UltraClear Plus Vanilla Flavor
Metagenics
49 ingredients · Botanical with Nutrients
On Market
UltraClear Renew Berry
Metagenics
72 ingredients · Other Combinations
On Market
UltraClear Renew Chai
Metagenics
68 ingredients · Other Combinations
On Market
UltraClear Renew Vanilla
Metagenics
69 ingredients · Other Combinations
On Market
UltraFlora Acute Care
Metagenics
13 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Children's
Metagenics
16 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Control
Metagenics
5 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora IB
Metagenics
7 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Immune Booster
Metagenics
6 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Immune Health
Metagenics
12 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Integrity
Metagenics
4 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraFlora Intensive Care
Metagenics
4 ingredients · Non-Nutrient/Non-Botanical
On Market
UltraLean Chocolate
Nutra BioGenesis
51 ingredients · Other Combinations
On Market
UltraLean Strawberry Banana Flavor
Nutra BioGenesis
57 ingredients · Other Combinations
On Market
UltraLean Vanilla Flavor
Nutra BioGenesis
51 ingredients · Other Combinations
On Market
UltraLean Vegan Chocolate Flavor
Nutra BioGenesis
51 ingredients · Other Combinations
On Market
UltraLean Vegan Vanilla Flavor
Nutra BioGenesis
47 ingredients · Other Combinations
On Market
UltraMag Magnesium
Pure Encapsulations
3 ingredients · Mineral
On Market
UltraMag Magnesium
Pure Encapsulations
9 ingredients · Mineral
On Market
Ultramyosyn Whey Isolate Berry Punch
MET-Rx
28 ingredients · Amino acid/Protein
On Market
Ultramyosyn Whey Isolate Chocolate
MET-Rx
29 ingredients · Amino acid/Protein
On Market
Ultramyosyn Whey Isolate Chocolate
MET-Rx
29 ingredients · Amino acid/Protein
On Market
Ultramyosyn Whey Isolate Chocolate
MET-Rx
28 ingredients · Amino acid/Protein
On Market
Ultramyosyn Whey Isolate Chocolate
MET-Rx
28 ingredients · Amino acid/Protein
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.