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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

L-Carnitine 500 mg
Bluebonnet
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Bluebonnet
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Puritan's Pride
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Puritan's Pride
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Rite Aid
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Swanson
10 ingredients · Other Combinations
On Market
L-Carnitine 500 mg With Vitamin B-6
Martin Avenue Pharmacy
7 ingredients · Other Combinations
On Market
L-Carnitine Caps 250 mg
Country Life
6 ingredients · Other Combinations
On Market
L-Carnitine Caps 500 mg
Country Life
5 ingredients · Other Combinations
On Market
L-Carnitine Extra Strength
BRI Nutrition
3 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Fumarate
Nutri-West
8 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Fumarate 885 mg
California Gold Nutrition
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Plus
Power Blendz Nutrition
7 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Plus Raspberry Ketones
The Vitamin Shoppe
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Power
SAN
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Tartrate 500 mg
Klaire Labs
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine500
Evlution Nutrition
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
Klaire Labs
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
Puritan's Pride
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Citrulline 1,000 mg
Source Naturals
6 ingredients · Amino acid/Protein
On Market
L-Citrulline 1,500 mg
Nutricost
4 ingredients · Amino acid/Protein
On Market
L-Citrulline 1000 mg
The Vitamin Shoppe
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 1000 mg
Source Naturals
6 ingredients · Amino acid/Protein
On Market
L-Citrulline 1500 mg
NusaPure
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 1500 mg
NusaPure
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Citrulline 2,000 mg
AN Amazing Nutrition Amazing Formulas
8 ingredients · Amino acid/Protein
On Market
L-Citrulline 2000 mg
Best Naturals
8 ingredients · Amino acid/Protein
On Market
L-Citrulline 3,000 mg
Dorado Nutrition
4 ingredients · Amino acid/Protein
On Market
L-Citrulline 500 mg
California Gold Nutrition
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
Protocol For Life Balance
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
AN Amazing Nutrition Amazing Formulas
6 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
AN Amazing Nutrition Amazing Formulas
6 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
NOW
5 ingredients · Other Combinations
On Market
L-Citrulline 750 mg
AN Amazing Nutrition Amazing Formulas
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
AN Amazing Nutrition Amazing Formulas
5 ingredients · Amino acid/Protein
On Market
L-Citrulline 750 mg
Pure Naturals
5 ingredients · Amino acid/Protein
On Market
L-Citrulline2000
Evlution Nutrition
5 ingredients · Amino acid/Protein
On Market
L-Citrulline2000
Evlution Nutrition
5 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Best Naturals
5 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Puritan's Pride Premium
5 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
California Gold Nutrition
5 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Bluebonnet
6 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Lake Avenue Nutrition
5 ingredients · Amino acid/Protein
On Market
L-Glutamic 500 mg
Sunshine Naturals
6 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
AN Amazing Nutrition Amazing Formulas
8 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
AN Amazing Nutrition Amazing Formulas
8 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
Lake Avenue Nutrition
6 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
Totally Products
7 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
Jarrow Formulas
7 ingredients · Amino acid/Protein
On Market
L-Glutamine 1000 mg
NOW Sports
6 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.